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Stop Reacting to Red Light Metrics: Why ‘Two Reds in a...

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tl;dr: The "two consecutive reds" rule persists because reacting feels like leadership -- but it generates wasted investigations, false success stories, and eroded trust....

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Hi, I'm Mark Graban!

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.

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