With all due respect to Johnny Cash and his song, “You’ll Never Walk Alone,” most of the time, you SHOULD walk alone…at least when executing your gemba walk leader standard work.
I know that sounds anti-social and in direct contradiction to the sentiments of teamwork and coaching, but it’s not. Let me explain.
Mention the term “gemba walk” among a group of lean practitioners and there will likely be immediate acknowledgement. We’ve all heard of gemba walks, right?
All leaders should do them.
Many do not.
Many do…but certainly not in the same way and not necessarily for the same reason.
The Lean Effect podcast, which is hosted and produced by Mark DeJong, recently released an interview with Mark Hamel, entitled Building Lean Organizations: Insights from Award-Winning Lean Expert Mark Hamel. Really, my mother had no influence on title creation.
We can reasonably characterize the people-related principles of lean by three leadership behaviors:
Changeover time represents the elapsed time to changeover from the production/processing of one product or service to a different product or service. Admittedly, there is little math involved here. Some readers may scratch their heads and wonder why one would need a math entry at all! However, changeover time is important in the overall scheme of Lean Math and, with it, the principle of flow and pull. More specifically, internal changeover time (T∆i) is a critical driver of batch sizes, lead time, and intervals.
Neil always used to confound and shock me. He was always pursuing perfection. And I would always retort something like, “But, the real world isn’t perfect.”
Over the years, I slowly realized the value and wisdom of Neil’s mindset. It is consistent with traditional lean thinking (as long as it does not paralyze the PDCA cycle), and it helps drive innovation and the right thought process. I have found that lean thinkers not only benchmark themselves against the competition, they also benchmark themselves against perfection. This is where math can help.
New Book. A handful of weeks ago, SME published our new book, Lean Math: Figuring to Improve. It is, and was, undoubtedly a labor of love…or at least the 444-page labor of Dr. Mike (aka Michael O’Connor) and me.
How you measure Inventory Accuracy depends on where you stand.
