This sign and picture might be a bit rude, so I saved this for a Saturday. To me, a very powerful and often unknown principle of the Toyota Production System and Lean is the idea that managers must “explain why” to employees if they give a directive order. I saw this when I visited the NUMMI plant and wrote about how they treated employees like adults by explaining why certain defective parts shouldn’t be used … Continue reading The Power of Explaining Why – A Funny Example