It's really simple if you think about it:
Let's say you're a coach with a bad first stint who gets a second chance at coaching a team, and the team's best player tells you flat out: "I'm not playing down low. I hate it. I'm going to shoot mid-range jumpers. That's my game. Don't like it? Fuck you." And so you go to your boss, the Front Office, and they tell you: "He's our best player, make him happy so he can re-sign with us, because our boss The Owner will be damned if he has to sit through another rebuilding period."
So what do you do? You lie to the public and say the best player is The Exception That Makes The Rule with regards to midrange jumpers, and you'll let him shoot from wherever he wants to despite your statistical analysis saying he'd be better down low or taking threes. Why? Because this is basketball, not a fight against a fascist regime... a job is a job. It's not the end of the world if you let the best player on the team do whatever he wants. Lord knows every coach does that anyway.