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  - November 6, 2007 -  

Manufacturing News: Do Lean Strategies Thwart Innovation?

 
 

While Lean Thinking has Big Supply Chain Benefits, Companies need some Slack Time to Innovate

 
 

 

SCDigest Editorial Staff

In the past decade, Lean has emerged from a little understood tool primarily used on the factory floor to a widely embraced concept deployed in every conceivable application across industries and processes.

SCDigest Says:
Slack is important in this process, to nurture the many ideas from which only a small number may actually have a big market impact. It is also necessary to allow companies to make mid-course corrections in the product or process.

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But there are perils to Lean strategies. The most widely understood is the fragility that too much “Lean-ness” can add to supply chains, significantly increasing risk. Nokia, for example, was badly hurt in world markets for cell phones early in the decade when a problem at a sole source provider’s chip plant and little or no buffer inventory caused huge production problems that forced it to release new models late, allowing Motorola to gain share (See What are the Limits to "Leanness?").

Does Lean thinking, taken to extremes, have another, less well understood risk – a stifling of innovation?

That’s what Dr. Steven A. Melnyk, a professor at Michigan State University, says in the latest issue of Supply Chain Quarterly, the thought leadership publication from the Council of Supply Chain Management Professionals (CSCMP).

“For all its success, though, a Lean system is not a perfect solution,” Melnyk writes. “It certainly is not applicable under all conditions. More importantly, under certain conditions, its use can actually be bad - bad for the company and bad for the supply chain. Its shortcomings are rooted in two areas: the over-application of lean practices and the lean systems' lack of flexibility.”

Western Companies Will Compete on Innovation

Manufacturers in North America, Europe and Japan are being threatened by a variety of powerful forces, particularly the rise of China and other low cost countries as attractive sources of low cost and increasingly high quality manufactured products. Not only are they causing Western manufacturers to move production to low cost countries, but increasingly China’s “Dragons” are competing directly with Western companies in world markets. (See The Supply Chain and China's Dragons.)

 
 
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Melnyk argues that to compete, Western companies will have to do so based on innovation – in some cases “radical innovation.”

“For a product to differentiate itself in an increasingly crowded marketplace, it must be new and aesthetically pleasing,” he writes. “The outsourcing of manufacturing and other "mechanical" tasks to Asia means that companies in North America and Europe must focus on creative thinking rather than on routine problem solving. They must also address the whole, rather than looking at specific components of a problem in isolation. Finally, automating the routine allows the focus in business to shift from cost leadership to the different and the creative.”

Radical innovation offers the potential for commanding premium prices and enjoying higher profits, making it more difficult for counterfeiters to copy new products, and often providing legal protections (through patents), among other benefits.

However, Melnyk adds, “Companies that are good at being Lean may not be good at radical innovation.”

Slack in Necessary for Innovation

In classic Lean thinking, any “slack” and variance in a system are considered evil, to be driven out through process re-engineering focused on “value streams.”

These attitudes are highly appropriate if our goal is to reduce variance and waste, Melnyk says, but “They serve us poorly, however, if our goal is radical innovation.”

“To succeed as radical innovators, companies must recognize and cope with the challenges that come with the territory. They need a broad portfolio of product - and process-related projects. Lead times for successful radical innovations may span months or even years,” he adds. “Making things more challenging is the fact that performance measures for radical innovation are difficult to determine in advance. Unlike the outcomes of projects developed under a lean system, the outcome certainty of radical innovation projects is very low. It is difficult to know if you are working on the next iPod or the next "clear beer" (a famous product failure; it appears that American drinkers want their beer to look like beer, not like water).”

Slack is important in this process, to nurture the many ideas from which only a small number may actually have a big market impact. It is also necessary to allow companies to make mid-course corrections in the product or process.

Melnyk argues that across a wide variety of factors, Lean thinking and radical innovation are very much opposed – meaning Western companies that emphasize too much Leanness in the short term may, in fact, be very much damaging their longer terms prospects.

Can Lean and Innovation Co-Exist?

So, can companies chart a course that allows them to be both Lean and innovative?

Yes, but only if companies fundamentally recognize the different strategies, requirements and resources needed for the different approaches to succeed, Melnyk says.

“If these two approaches are to "live" together, a company must separate the system it relies on to foster innovation and the development of new products from the system that it uses to drive out waste and variance and to standardize products and processes,” he writes. “Each system needs its own resources and its own controls. The innovation system can then become the "feeder" for the lean system. That is, once a new product has been found to be economically and strategically viable, it is then passed to the Lean system for production.”

The Bottom Line: Companies cannot allow Lean strategies to stifle innovation by transforming radical breakthroughs (something that Lean has difficulty handling) into incremental breakthroughs (something it can deal with). Companies that are competing in an environment that rewards innovation must ensure that their supply chains support and facilitate flexibility.

Can Lean be the any of innovation? What is your take on Dr. Melnyk’s perspective? Do we need separate “supply chains” for mature and innovative products? Let us know your thoughts at the Feedback button below.

 
     
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