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Mutual Trust and Respect: What Really Made NUMMI Work
TL;DR: NUMMI's success was not driven by Lean tools alone, but by leadership behaviors that treated people as partners in quality and improvement.
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Lean Blog, founded in 2005 by Mark Graban, is one of the longest-running Lean management blogs. It shares practical insights on Lean management, psychological safety, and continuous improvement — focused on better systems, better leadership, and better outcomes for customers and people.



































