Six Sigma, Kaizen, Lean, and other variations on continuous improvement
can be hazardous to your organization's health. While it may be heresy
to say this, recent evidence from Japan and elsewhere suggests that it's
time to question these methods.
Admittedly, continuous improvement once powered Japan's economy.
Japanese manufacturers in the 1950s had a reputation for poor quality,
but through a culture of analytical and systematic change Japan was able
to go from worst to first. Starting in the 1970s, the country's ability
to create low-cost, quality products helped them dominate key
industries, such as automobiles, telecommunications, and consumer
electronics.
To compete with this miraculous turnaround, Western
companies, starting with Motorola, began to adopt Japanese methods. Now,
almost every large Western company, and many smaller ones, advocate for
continuous improvement.
But what's happened in Japan? In the past year Japan's major electronics firms have lost an aggregated $21 billion
and have been routinely displaced by competitors from China, South
Korea, and elsewhere. As Fujio Ando, senior managing director at
Chibagin Asset Management suggests, "Japan's consumer electronics
industry is facing defeat. "Similarly, Japan's automobile industry has
been plagued by a series of embarrassing quality problems and recalls,
and has lost market share to companies from South Korea and even (gasp!)
the United States.
Looking beyond Japan, iconic six sigma companies in the United
States, such as Motorola and GE, have struggled in recent years to be
innovation leaders. 3M, which invested heavily in continuous
improvement, had to loosen its sigma methodology in order to increase the flow of innovation.
As innovation thinker Vijay Govindarajan says,
"The more you hardwire a company on total quality management, [the
more] it is going to hurt breakthrough innovation. The mindset that is
needed, the capabilities that are needed, the metrics that are needed,
the whole culture that is needed for discontinuous innovation, are
fundamentally different."
So should we abandon continuous improvement? Absolutely not! It has
created tremendous value and still drives competitive advantage in many
companies and industries. But perhaps it's time to nuance our approach
in the following ways:
Customize how and where continuous improvement is applied.
One size of continuous improvement doesn't fit all parts of the
organization. The kind of rigor required in a manufacturing environment
may be unnecessary, or even destructive, in a research or design shop.
Sure it's important to inject discipline into product and service
development, but not so much that it discourages creativity.
Question whether processes should be improved, eliminated, or disrupted.
Too many continuous improvement projects focus so much on gaining
efficiencies that they don't challenge the basic assumptions of what's
being done. For example, a six sigma team in one global consumer
products firm spent a great deal of time streamlining information flows
between headquarters and the field sales force, but didn't question how
the information was ultimately used. Once they did, they were able to
eliminate much of the data and free up thousands of hours that were
redeployed to customer-facing activities.
Assess the impact on company culture. Take a hard
look at the cultural implications of continuous improvement. How do they
affect day-to-day behaviors? A data-driven mindset may encourage
managers to ignore intuition or anomalous data that doesn't fit
preconceived notions. In other cases it causes managers to ask
execution-oriented, cost-focused questions way too early, instead of
percolating and exploring ideas through messy experimentation that can't
be justified through traditional metrics.
Continuous improvement doesn't have to be incompatible with
disruptive innovation. But unless we think about continuous improvement
in more subtle, nuanced, and creative ways, we may force companies to
choose between the two.
Source
Ron Ashkenas is a managing partner of Schaffer Consulting and a co-author of The GE Work-Out and The Boundaryless Organization. His latest book is Simply Effective.
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