Sorry, Snow White, you’re out

We’ve had a meeting, us seven dwarves and, I’m sorry, we don’t need you.

Once you’ve got 7 people in a decision-making group, each additional member reduces decision effectiveness by 10%, according to Marcia W. Blenko, Michael C. Mankins, and Paul Rogers, authors of Decide & Deliver: 5 Steps to Breakthrough Performance in Your Organization. Thus, a group of 17 or more rarely makes any decisions.

Effective Decision Making and the Rule of 7 – The Daily Stat, Harvard Business Review (28 September 2010)

Have they been sitting in on BBC meetings?

Via Lifehacker.

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