How so? We've never seen how an all black coaching staff would perform. They have never been given the opportunity. But what we have seen is when was the last great American Born white guy? Larry Bird? Do coaches even matter much in the NBA? It's more about who you coach. Phil Jackson would have these Rockets on a 13 game losing streak. If we had the 5 best American born white guys in the league today, we would be in last place. Probably on a 20 game losing streak.