Apr 26 2013
Improving operations: How far can you go with common sense?
In the Lean Six Sigma discussion group on LinkedIn, Brian P. Sheets argues that ” the alphabet soup of acronyms describing the multitude of process improvement & management methodologies that have come and gone over the last 50 years […] is just plain, old, common sense.” The list he targets in this statement is Six Sigma, TQM, BPR, BPM, TOC, MBO, Kaizen, and Gemba Kaizen, and overlap the one I discussed earlier in this blog. To support his argument, he invokes not only the great work done in US manufacturing during World War II without these acronyms, but goes back all the way to Egypt’s pyramids.
I see things differently. The old days were not so great and we have learned a few new tricks in the 68 years since the end of World War II, as a result of which we are not only able to make better products, but we also use fewer people to make them, at a higher quality. There definitely is something to some of the ideas that have been packaged under various brands in that time, and it is definitely more than common sense.
What is common sense anyway? The common sense approach to a problem is the solution that would be chosen by an intelligent person without any specialized knowledge. It is what you resort to when faced with a new situation you are unprepared for, like the businessman played by Anthony Hopkins in The Edge, who is stranded in the Alaskan wilderness by a plane crash and has to kill a grizzly.
Once you have been working on something for a few years, however, you are supposed to have acquired specialized knowledge of it, and apply solutions that are beyond common sense. And these solutions are counter-intuitive to anyone without this experience. Lean manufacturing concepts like one-piece flow or heijunka are bewildering to beginners, because they have nothing to go by beyond their common sense.
“Common sense,” Descartes said, “is the most fairly distributed thing in the world, for each one thinks he is so well-endowed with it that even those who are hardest to satisfy in all other matters are not in the habit of desiring more of it than they already have.” After that, he proceeds to explain a method “to seek truth in science” and presents three applications of this method, the best known being analytic geometry. All of this is far beyond common sense.
For all these reasons, I am not too fond of invoking common sense in support of any new concept. What you really need is a rationale, and experimental proof through a small scale implementation.
Aug 26 2013
Beware the Sirens of Management Pseudo-Science | HBR Blog | Freek Vermeulen
See on Scoop.it – lean manufacturing
“…A common formula to create a best-selling business book is to start with a list of eye-catching companies that have been outperforming their peers for years. This has the added advantage of creating an aura of objectivity because the list is constructed using “objective, quantitative data.” Subsequently, the management thinker takes the list of superior companies and examines (usually in a rather less objective way) what these companies have in common. Surely — is the assumption and foregone conclusion — what these companies have in common must be a good thing, so let’s write a book about that and become rich…”
Bill Waddell branded the author of this article “The Naysayer Personified,” which prompted me to read it. Vermeulen’s first target it “In Search of Excellence,” a best seller from the 1980s that pointed out “excellent” companies that didn’ excel so much after the book came out. I had read it at the time, and had found it little more than a cheer-leading compilation of the public relations literature of the companies. So far, I agreed with Vermeulen.
Further on, he bashes as management fads not only Six Sigma, TQM, and ISO-9000 — no argument here — but also Lean. Ouch! This is my stock in trade, and I really should argue that Vermeulen doesn’t get it.
But my heart is not in it. Much has been done in the name of Lean by now that amounts to little more than slapping the label onto ideas that are unrelated to the Toyota Production System (TPS), and it hasn’t been particularly effective.
That is not what Lean is to me. I see it as the adaptation to other contexts of the principles that have made Toyota successful in the car business, involving in practice the selection and adaptation of relevant TPS tools, as well as the development of new ones. And I admit readily that it is not a panacea. There are plenty of human endeavors to which it does not apply, but what interests me is the ones to which it does.
When you want to discuss this now, just can’t just say “Lean,” you have to qualify it as “Lean Deep” or “True Lean,” as opposed to “Lean Lite” or “Lean As Mistakenly Executed” (L.A.M.E.).
Could the same be said of the other approaches Vermeulen criticizes? To some extent, yes. Six Sigma and TQM, for example, are based on real contributions made in specialized areas, before their promoters went global cosmic.
See on blogs.hbr.org
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By Michel Baudin • Blog clippings • 5 • Tags: ISO-9001, Lean, Six Sigma, TQM