He was not disparaging donkeys.
Donkeys are great at some things but no one would mistake a donkey for a race horse. But in the workplace we often hire perfectly good donkeys for positions that require race horses.
It’s hard to win at basketball without the right talent. It’s imperative in business to get the right people in the right places. Have you been hiring donkeys and then trying to train them to be race horses? How’s that working for you?