1. Fire Mike D'Antoni
Okay, just kidding. No, but seriously.
I'm RARELY one to criticize a coach, because the main thing he can do in a game is rotate his players properly. He can't control who makes a shot and who gets called for weird fouls. All he can do is make sure the best players are in, and that his starter's aren't overworked.
Well that, and all of the rest of the keys to them winning rest in the hands of their coach, who has managed to make basketball look as difficult as a physics equation.
With this team, he just needs to let them play basketball, and give them all the tools to play defense effectively.