I’ve long been skeptical of so-called “Lean Sigma” or “Lean Six Sigma.” And not because I’m against Six Sigma statistical methods, which are valid and helpful in solving certain difficult problems. What I don’t like is the oft-stated “Lean Sigma” mantra that says something like, “Lean and Six Sigma are just tools in the improvement toolbox; so use the right tool for the right problem.” Lean is far more than process improvement tools. As Toyota … Continue reading Lean People Don’t Say Things Like “Idiot Proofing”