In hindsight, I understood that a team with one or two merely adequate performers brings down the performance of everyone on the team. If you have a team of five stunning employees and two adequate ones, the adequate ones will sap managers’ energy, so they have less time for the top performers, reduce the quality of group discussions, lowering the team’s overall IQ, force others to develop ways to work around them, reducing efficiency, drive staff who seek excellence to quit, and show the team you accept mediocrity, thus multiplying the problem.
