Michael Lewis showed that big-league baseball coaches and general managers are nearly all idiots (or at least were until he wrote his book exposing them, at which point a few non-idiots got hired, but most idiots kept their jobs), so it's not necessarily totally implausible that NBA coaches are all idiots.

Out of curiosity, since I don't know anything about basketball, how do you beat a full-court press, and why isn't it a good idea to at least try to stop people from getting down the court?