FiveThirtyEight had a graph on baseball teams, comparing the abilities of the players with a type of Winning percentage metric:
Teams to the right consisted of a few great players mixed with some average and below-average players - a big spread of abilities.
Teams to the left didn't have any superstars, but they had above-average players.
Which group of faculty would you think would make for a better school? The one with some GREAT teachers and some LOUSY teachers, or the one with only GOOD teachers?
Which school would you rather be enrolled in?