Five whys

…any undertaking, entrepreneurial effort, or other collective initiative facing a tough impediment.

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Therefore:

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Also, see stretch and squeeze.

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Sources

• Root Cause Analysis From Juran, about the Jefferson Memorial, Washington.
• HBR » 5 Whys, Eric Ries (video 3:13)
• 5 Whys - Root Cause Analysis
• 5 Why, YouTube (funny?).
• HBR » The Power of Defining the Problem

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