11 Habits of Highly Ineffective Managers

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1. Being a Know-It-All

Weak bosses quash discussions that might reveal their ignorance, belittle the true expertise in the group, and then (often without being aware of it) recruit and retain second-rate "stupider than moi" employees.

Strong bosses surround themselves with the smartest and most talented people they can hire. Rather competing to see who's a bigger brainiac, they draw on the expertise of the entire group in order to make better-informed decisions.