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| NEW CONSTRUCTION
STRATEGIES ARTICLES |
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The AEC Dilemma…Exploring
the Barriers to Change
By Peter Beck
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In late 1998, I attended a meeting of national
real estate executives during which a workshop was held to discuss
the future affects of technology on the industry. Each member
of the panel of speakers, representing various disciplines,
devoted their comments to describing a variety of new technologies
which would soon be incorporated in the next generation of buildings.
Not a single speaker touched upon any technology which might
significantly reduce project costs or schedules. It struck me,
at the time, that if this were a panel of automobile manufacturing
executives, few comments would have focused on the latest sound
system or transmission. Instead, they would likely have discussed
technologies which would continue to radically improve the prototyping
of their products; resulting in improved speed to market, reduced
manufacturing times, greater customer choice, and associated
cost reductions. Today, that same group might focus on such
innovative options as enhanced guidance systems or wireless
portals, but would also emphasize future technologies which
will allow you to order your next car online (including your
choice of options), and receive it within two weeks.
| As the above might suggest, many
real estate practitioners are caught within their own paradigms
(Bum Phillips’ proverbial two dimes), precluding them
from asking themselves the essential questions required
to insightfully explore radically better alternatives. |
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| Technology is
not the solution to this dilemma…it
is merely a tool to getting there. |
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“What if we could…?”
and “Imagine if…?” don’t come naturally
to those of us with 10+ years of experience…particularly
in good economic times. While the industry continues to
offer lip service to improving project costs and schedules,
the conventional processes to which we adhere prevent us
from achieving any significant progress. |
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| For sure, technology is not
the solution to this dilemma; it is merely a tool to
getting there. Better technologies will only be adopted
if industry participants are motivated to do so. The purpose
of this paper is to explore: |
1. The potential to substantially reduce the
waste embedded in our current delivery processes,
2. Existing industry dynamics which sustain barriers to implementing
improvements, and
3. Potential changes which might meaningfully transform the
industry by removing such barriers.
This issue is not about two to five percent improvements.
The goal is to achieve 20% to 50% reductions in delivery time,
and perhaps equivalent enhancements in project costs. Okay,
I hear you…that’s impossible; but let’s explore.
Over the past three decades, most industries have
undergone significant transformations resulting in substantial
improvements in the value of their products and services. Automobile
manufacturers have reduced their concept-to-production cycle
from six years to 14 months. (Can you imagine what entrenched
industry veterans might have said if someone had naïvely
proposed merely a two or three year improvement?) Wal-Mart revolutionized
retailing by developing a highly sophisticated business model
enabled by a powerful distribution technology. Mini-mills redefined
the steel industry by deploying smaller, efficient operations,
using new technology, all but displacing incumbent, capital
intensive manufacturers in many product lines. In most cases,
these extraordinary improvements resulted from significant changes
in both business models and processes, frequently enabled by
some technological innovation.
The AEC (architecture, engineering, & construction)
industry offers an obvious and glaring exception to such trends.
It is renowned for its inefficiencies as well as the reluctance
of its participants to adopt significant improvements. Paul
Teicholz, the retired Director of Stanford University's Center
for Integrated Facility Engineering www.stanford.edu/group/CIFE,
wrote in late 1999, “A building that took 1,000 hours
to construct in 1964 would have required just 552 hours in 1998
had the industry achieved the same productivity increases as
the rest of the non-farm sector. Instead, that building would
have taken more than twice as many hours: 1,185”. www.enr.com/new/V1213.asp
Engineering News Record (ENR) recently projected that delays
and project overruns may approach $200 billion of the $700 billion
US commercial construction market. Various institutes, including
the Construction Industry Institute (CII) www.construction-institute.org,
the Design-Build Institute of America (DBIA) www.dbia.org,
and the Lean Construction Institute (LCI) www.leanconstruction.org,
have documented many examples of such waste. It is a difficult
task since excess costs associated with design and construction
errors are difficult to measure given that crafts-people do
not cease work when a problem arises (as is the case on a production
line), but rather continue to busily work through the resolution
of the problem. LCI suggests that conventional approaches to
construction may generate field productivity losses in excess
of 25% on some projects http://web.bham.ac.uk/d.j.crook/lean/iglc4/ballard1/ballard2.htm.
Such waste is a result of the amount of work that cannot be
performed when planned often due to uncoordinated and incomplete
information causing inefficient deployment of labor. Informal
surveys within The Beck Group www.beckgroup.com
indicate that project managers devote 50% to 70% of their time
checking, fixing, and documenting issues and problems…none
of which adds meaningful value to the project. These are not
simply two to five percent issues!
Yet the cost of real estate is often the second
largest line item in a corporate budget. With such compelling
opportunities and reasons to reduce project costs and schedules,
why has so little progress been achieved other than to compress
schedules by further overlapping activities causing even more
waste, less margin for error, and greater inefficiencies? To
comprehend the potential to radically improve the delivery process,
one must first grasp the various dimensions of the dilemma as
well as the barriers to change throughout the industry.
The Potential: In Search of Hidden Value
Construction projects rely upon a variety of disciplines
containing poorly integrated silos of knowledge. The process,
as currently practiced, creates enormous inefficiencies (or
discontinuities), which result in massive waste in delivery
times and costs. Currently, the “dot.coms” and other
technology providers would have us believe that the problem
can be rectified by using better document sharing technology
and other communication tools. While such tools do offer incremental
improvements, the preponderance of waste on a project results
from poorly coordinated and incomplete information which directly
affects the cost and construction time in the field. The administrative
time and costs required to resolve such problems are merely
a rounding error in comparison. The key issue is not how
quickly one can deliver more information through a bigger “pipe”,
but rather the quality of the information going through it.
The discontinuities are a direct result of each
firm, typically representing a single discipline, naturally
placing greater emphasis on improving its own bottom-line than
on reducing the total project cost and schedule. Initially,
practitioners devote significant energy to getting projects
within budget. But once accomplished, they focus their efforts
on delivering their services within their contract terms, often
characterized by demanding schedules and tight fee structures.
In contrast to most manufacturing operations, no AEC entity
is contractually responsible for the complete result. Contractors
are not paid to take design risks, architects shun engineering
risks, and both architects and engineers avoid price risks.
Consequently, each discipline performs a variety of wasteful
activities within their own silos of knowledge, to further their
own interests, with precious little regard for the value contributed
to the project. In other words, AEC firms streamline their own
businesses around wasteful project delivery practices. There
are many examples to draw from, some of which include:
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Plans and specifications are insufficiently
coordinated and are rarely completed before construction commences,
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Shop drawings and RFI’s are used to
complete design during construction,
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Change orders are frequently a result of
the user’s inability to read 2D plans (and why should
they have to?),
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Drawings do not incorporate recent changes
in manufactured components,
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Most value engineering evolves into a scope
reduction effort and rarely takes into consideration related
impacts on design, etc.
In addition, considerable value enhancements may
be hidden by the fact that many primary design parameters, defining
a majority of the cost, are established long before an accurate
cost estimate can be completed, even when the design/construction
team works together from the outset. The lack of deeply integrated
design/estimating tools prevents real-time feedback during the
design process, except on a general level. Accurately evaluating
costs across multiple design parameters (length to width variations,
building rotation, floor-to-floor height, system alternatives,
various building shapes, etc.) would, today, require much too
much time and cost to reengineer, redraw, and accurately estimate
for each alternative.
The Barriers: Why Have We Made So Little Progress?
Given that most architects are motivated by some
combination of design excellence and profit, why would any design
firm complete their drawings, before construction commences,
beyond the industry standard of 70% or so? Architects frequently
delay resolving design options as late as possible in order
to rely upon input from subcontractors who are frequently selected
after construction begins in the field. Too often, design is
completed on shop drawings which could likely be avoided if
the initial drawings were completed in sufficient detail. But
architects are rarely paid adequately to complete their plans.
Contractors certainly have no incentive to pay architects to
finish their drawings since any derived savings are returned
to the owner under most conventional, negotiated approaches.
Clients cannot easily measure the benefits, nor justify the
costs, of completing the documents. Yet the predominant waste
factor is caused by incomplete and uncoordinated design information,
fostering both delays in manufacturing/installation as well
as additional costs due to rework, etc.
Engineers are often given the building design
and are tasked with “making it work”, resulting
in very little optimization. Even if they possess accurate,
real-time pricing information, they are rarely motivated to
explore the most cost-effective solutions any further than defensible
design logic and ample safety factors will permit. In addition,
architects continue developing designs long after engineers
perform their work on the initial set of drawings created by
the architect. Consequently, the architectural and structural
drawings are often not coordinated or carefully reviewed, before
issuing for construction, due to schedule compression driven
by the owner’s business.
General Contractors (GC’s) rarely possess
sufficient design knowledge to suggest optimal design solutions
to the team. Too often, the phrase “value engineering”
serves merely as some euphemism for scope reduction, due to
the lack of integrated design knowledge and tools. Once the
project is in budget, GC’s are motivated to meet their
contractual commitments to deliver on schedule and within a
guaranteed price…not to explore alternatives to optimize
value (which would further delay completion of the design and
thereby increase their own assumed risk). Subcontractors, who
possess the best knowledge of integrating cost and design, are
too often brought to the table after the design is virtually
complete under the common “misunderstanding” that
the low bid is synonymous with the best value. Even if involved
early in the process, subcontractors have little integrated
knowledge of design, engineering, and construction across multiple
trades, thereby limiting the merit of their input in optimizing
value across the whole project.
Perhaps the greatest barrier to change today is
the fact that most practitioners are sufficiently profitable,
using current delivery methods, to bother experimenting with
promising alternatives. While these are good times, margins
in each discipline are still insufficient to permit individual
firms to invest in better tools and procedures. Furthermore,
the fragmented nature of the industry, combined with the usual,
one-time project experience between firms, does not generate
sufficient profit or other motivation to invest in long-term
innovations. In addition, the technological tools deployed today
are designed to service the unique needs of each separate discipline
(CAD, scheduling and estimating systems, etc.), not to integrate
information across disciplines to improve accuracy and reduce
time. Until we can functionally integrate knowledge across the
disciplines using yet unavailable integration technologies,
we lack the “infrastructure” to motivate the disciplines
to optimize value around the project instead of their bottom
lines. Clearly, the likelihood of early adoption of such tools
will depend upon the perceived benefit to such firms using new
contractual models.
Universities also share responsibility for the
predicament of the industry. Graduates in each discipline are
infrequently encouraged to learn about related disciplines.
Professors (as advisors) are not sufficiently comfortable with
their own lack of knowledge of related disciplines, and thus,
rarely encourage students to pursue multi-disciplinary paths.
After all, one gains tenure by becoming an expert in their discipline…and
there is little motivation to reinvent oneself after achieving
such rank. In addition, department budgets are often based upon
the direct student hours taught in a specific discipline during
the prior year, thereby encouraging professors to promote study
within that discipline. Consequently, many graduates enter the
workforce unprepared to integrate project knowledge across disciplines
and are often predisposed to suspect the motivations of their
colleagues in related disciplines…a behavior which is
further promoted in the workplace.
Owners, who have the most to gain, are rarely
motivated to test new and improved delivery models. Too often,
the design and construction departments of major corporations
are heavily influenced in the cultural pecking order by the
purchasing and audit departments, requiring lowest bid subcontracts
(an excellent approach to purchasing pencils) and design fees.
Any multi-disciplinary approach to optimizing value ends upon
acceptance of the low bid; both at the GC and subcontractor
levels. While constantly seeking lower costs within purchasing
guidelines on a project-by-project basis, most owners are not
aware of the extent of waste of their own money in the field
or even how to begin addressing the problem. One can imagine
how unnatural it is for field supervisors and crafts-people
to “wave the flag” on what they know to be an inefficient
process, particularly given their relentless focus on completing
their contractual obligations, in a very risky environment.
Logically, software companies are best positioned
to develop better integration tools. The best known firms, Autodesk
www3.autodesk.com
and Bentley www.bentley.com,
provide over 90% of the CAD software to the industry. However,
adoption of superior, rule-based design technologies would require
their customers to reinvent their own design processes…a
“supply-push” marketing strategy with questionable
potential. In addition, these software firms are reluctant to
invest in innovations which might cannibalize their current income
stream and offer a market “window” for new entrants.
In Clayton Christensen’s book, “The Innovator’s
Dilemma” www.scws.com/webcraft/books/0875845851.htm,
he suggests that dramatic innovation is unlikely to come from
well-established industry players. Several newly formed software
companies have tried to develop integration technologies only
to find that total market demand, represented by a few integrated
AEC firms, is much to thin to justify a sufficient return on investment.
A few firms continue trying to develop related technology, but
most have focused their efforts on adapting their technology to
existing industry practices, substantially mitigating its potential.
Quite simply, without an immediate market, new software firms
cannot justify the investment in substantially better tools…nor
can their VC’s wait.
Transforming the Industry: How Might We Overcome These Barriers?
While there are many barriers to transforming
the industry, the potential benefits are extraordinarily compelling
for practitioners and owners alike. Judging from other industry
transformations, a few firms will lead it, some will follow,
and the rest will fight it. The real question is more about
how long it will take; and that is often longer than most believe.
| Most real estate practitioners
eschew comparisons with the manufacturing sector; quickly
pointing to dissimilarities between project management and
assembly line processes…a valid conclusion. |
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| However, prototyping
products (concept-to-production) in the manufacturing
world is highly analogous to the delivery of a building.
Both involve a wide variety of disciplines and suppliers
in the design/pricing/fabrication process to produce a
one-of-a-kind result. |
Prototyping
products in the manufacturing world is highly
analogous to the delivery of a building. |
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| We can learn in particular from
the automobile industry which, since the 1970’s, has
accomplished order-of-magnitude improvements in the cost
and time required to prototype new models from concept to
assembly line. Potential lessons to be learned include: |
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Extraordinary gains were realized from deploying
a “platform” approach by combining experts from
various departments (design, engineering, manufacturing, purchasing,
marketing, etc.) within a team which was held jointly responsible
for the development of a particular model. Heretofore, prototypes
were developed by handing off information from department
to department, none of whom assumed full responsibility for
the end result. (Sound familiar?)
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Manufacturers of components were brought
into the design function thereby substantially increasing
the knowledge base from which prototypes were designed, engineered,
and “constructed”. They were also motivated financially
by sharing in the success of the development effort.
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Rule-based, object-oriented design technologies
were adopted to integrate across embedded knowledge held by
the various disciplines represented on each team.
Clearly, there are significant differences between
the industries as well. Given the margins and market share enjoyed
by the car companies, they could afford steep investments in
sophisticated technologies while amortizing such costs over
millions of copies…none of such luxuries are enjoyed today
in real estate. Furthermore, the various departments (or disciplines)
within the “old” car company at least reported to
one CEO and a common set of shareholders who, in theory, were
motivated to explore better solutions…like integrating
across the disciplines. The fragmented nature and diversity
of cultures of the real estate disciplines are not conducive
to such an evolution. In addition, manufacturing generally entails
a clearly defined process of passing work and information up
and down the supply chain. In the project management world,
work and information are passed back and forth across a variety
of participants, obscuring the responsibility for and quality
of both.
The most likely model for change may be driven
by long-term alliances between practitioners and those owners
with large-scale building programs who can immediately reward
their shareholders with lower costs and shorter delivery times.
The obvious question is, “How long will it take to go
how far?”, which no one can really answer. However, the
foundation for this transformation will likely include:
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Developing delivery models which motivate
all project participants to optimize the value derived from
the result. “Participants” must include all players…from
owners to designers to the crafts, as well as the manufacturers
of building components. Motivations must be financially linked
with the desired outcomes utilizing innovative contracting
models. Rewards must be based upon the value delivered and
not solely upon a set fee percentage applied to a contract
amount.
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In addition, the industry must develop the
tools to integrate across multiple disciplines, linking their
motivations and optimizing around project value. Most available
document sharing tools merely communicate inadequate information
between disciplines more quickly.
The benefits to owners are obvious. In addition,
practitioners will likely earn enhanced profits (at least for
some period) using a model based upon participating in the enhanced
value delivered. In addition, practitioners may also create
a much more rewarding work environment by relying upon people’s
innovative and knowledge based skills, while reducing the considerable
frustrations resulting from both routine work and those problems
inherent to the current process, but unrelated to project goals.
The potential to reduce project costs and schedules
is undeniable. However, many will resist. If we replace the
production of paper plans with parametric modeling (described
below), significantly fewer architects will be required in the
production process, since the details are generated as a byproduct
of the design process. As the accuracy of plans and specifications
are improved, many fewer project managers will be required to
do the “checking, fixing, and documenting” referred
to earlier. However, as we have seen in so many other industries,
if the value enhancements are sufficiently compelling, change
will occur despite the disruptive nature of the process.
There are several very promising delivery models.
Consider 1) merging disciplines internally within a firm, or
2) sharing risks and rewards across independent disciplines
(including subcontractors) on a project-by-project basis, both
of which can motivate all disciplines around enhancing total
project value. Architects might then strive to complete and
coordinate drawings, if the additional cost required to provide
greater accuracy paled in comparison to the savings resulting
from less rework in the field. Contractors might be motivated
to produce “meaningful” value engineering that would
be both consistent with the design intent as well as properly
researched to avoid undesirable impacts, which often require
additional redesign during construction today. Design/build
projects and internally integrated firms are already exploring
these and other benefits, but many still use conventional processes
and contractual models. For such concepts to evolve into order-of-magnitude
improvements, owners must motivate practitioners to explore
substantive process changes by sharing a meaningful portion
of any enhanced value. Multi-project alliances (through the
subcontractor level) and shared investments in technology development
offer the potential for everyone to benefit. But then, practitioners
must also prove (and perhaps guarantee) additional benefits
to clients, as well as share in the downside (like excess operating
and maintenance costs), in order to motivate the latter to explore
such alternatives. Design/build/operate contracts offer a promising
model as well by placing those with the most expertise in the
position of assuming most of the risks and rewards. The point
is that owners and practitioners must initially identify the
project goals, along with meaningful metrics, and then experiment
with contracting alternatives which link the financial motivations
of all participants with those goals.
| In addition to performance oriented
contracting models, linking the motivations of the various
participant’s will require tools through which to
share knowledge and information on a functional, real-time
basis. As referred to above, rule-based design will significantly
reduce uncoordinated and incomplete design information.
It will also offer a commonly understood medium through
which the various disciplines can share their specific knowledge
on a real-time basis and in an integrated fashion. Occasionally,
today, identical projects are designed and built by the
same participants several times in succession (as in prototyping
buildings in some office parks) revealing startling improvements
between each iteration. We recently completed a series of
prototype projects achieving a 30% reduction in delivery
time between the first and third version of the same building.
Such improvements are a result of increasingly complete
documents, thoroughly coordinated information, and deeper
knowledge derived from shared experience on each of the
prior project(s). Prototyping buildings in a virtual environment
with rule-based objects will offer similar, but greater
benefits by resolving and completing the entire design,
very accurately, before ever entering the physical space…the
latter being a much more costly environment characterized
by slim margins for errors. |
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| Don’t
confuse parametric modeling with CAD! |
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Combined with intelligent objects
and more standardization around building components, designers
and builders can significantly reduce the uncertainty in
providing real-time cost information “for every stroke
of the pen”. Consequently, it will become economically
feasible to explore a wide range of design variations (Dynamic
Value Engineering) to optimize project value. |
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| Such technologies will facilitate
the parametric modeling of buildings in much the same way
that CATIA and Pro/Engineer did in the manufacturing and
mechanical industries. Don’t confuse parametric modeling
with CAD! The latter is a good drafting tool, but offers
little opportunity to rapidly design, engineer, and estimate
using intelligent objects. |
Integrating the supply chain is another rich area
for the development of technological innovations. This opportunity
is not about setting up exchanges and auctions to commoditize
suppliers and manufacturers, nor focused on merely reducing
purchase order costs by $150, or so, per transaction. A GC may
make 75 major purchases on a project rendering the value of
the latter to a rounding error on a $50 million contract, though
subcontractors and fabricators will realize some greater value
from reduced transaction costs. The real opportunity is to create
visibility up and down the supply chain; spotlighting wasteful
processes and allowing suppliers and designers to capitalize
upon deeper knowledge about each other. If a designer knew that
a curtainwall fabricator’s production line was set up
for a specific mullion width and design around the time that
the building skin would be required, that designer might slightly
adjust their design to capitalize upon a significantly lower
cost…a value enhancement that is virtually unobtainable
today due to the lack of visibility within the supply-chain.
In September of 1997, Gordon Moore articulated
what has become known as his second law…much less famous
than his initial observation about the exponential increase
in power, over time, of the integrated circuit. Basically, he
said that the accelerating cost of chip facilities, due to the
limits of the silicon medium, might significantly dampen the
increasing rate of efficiency of chips described in his first
law. Loosely translated, he implied that if an innovation is
not financially practical, it will not be realized, despite
its technical feasibility. A corollary to this concept is that
the coolest technological innovations as well as the best potential
processes are unlikely to be adopted without sufficient motivation
to do so. While their may be little motivation today to develop
parametric modeling technology and improved supply-chain processes,
such tools will evolve as the industry adopts meaningful incentives
to invest in their development by embracing the kinds of business
and contracting models described above.
Woven among these ideas is a potentially ominous
evolution which the industry must seek to avoid. I will not
dwell on it here, accept to strongly emphasize that the most
successful projects are not necessarily the cheapest or fastest
to build. Excellent architecture is critical to the success
of any project…whether for a simple warehouse or a museum.
Unfortunately, project costs and schedules are the primary influences
on owners’ decisions due, in large part, to their ease
of measurement. Design and construction departments within corporations
are generally not inspired to create motivating spaces for employees
or wonderful spatial experiences for customers because their
performance is rarely measured along such dimensions. Budgets
and schedules are established early in the procurement process
and must be met. The technological tools considered above will
put enormous power in the hands of owners to modify design purely
for the sake of lower costs or faster delivery. Hopefully, these
technological tools will also be used to free resources to be
spent on those design characteristics which are critical to
the design intent of the building. Let us also hope that we
concurrently develop effective metrics linking design quality
with improved financial performance as measured by sales revenue,
customer experience, employee retention, etc. We are all tiny
packets of dreams, fears, aspirations, etc. who, so far, are
not controlled by IP addresses, and as Maslow concluded, are
ultimately motivated by a variety of intangibles.
As opposed to many industries which have become
quite efficient over recent decades, the real estate industry
still offers many opportunities to achieve enormous improvements
in delivered value. While most people in the industry today
struggle with very long work hours and frustrations resulting
from the convoluted processes that we use, there is real hope
that progressive practitioners will begin to redefine the industry,
creating a much less regimented environment while deploying
more efficient processes. Clearly, some aspects of our work
require a high degree of accuracy and regimen, with little margin
for error…few firms stay in business replacing poorly
designed or installed curtainwalls or roof systems. However,
for the first time in many years, we have an opportunity to
take some risks, make some mistakes, and embrace the kinds of
process changes which will deliver significantly enhanced value
propositions. Clients are increasingly ready to listen…some
are even impatient for change and willing to experiment. Most
importantly, the future will likely value the innovative and
creative skills of our people, as the redundant nature of their
work begins to disappear (such as shop drawings, maintaining
door and hardware schedules, late nights of gathering grocery
lists of value engineering, etc.). This is a unique time…one
that will be extremely fulfilling for those prepared to explore,
make a lot of mistakes, and who relish the fact that meaningful
progress is simply a progression of learning faster.
* * * * * THE END * * * * *
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