What a lot of people seem to be missing is that the coach does not decide who takes the shots. He can call the plays, although very often the point guard will do that, but the players have to execute them. Every play has multiple options depending on what the match ups are, how the defense reacts, and other factors. The players look to get a good shot, if a shot is there, they don't pass it up to force feed it to one guy, unless that guy happens to be Lebron. People also need to stop thinking a coach can tell players not to shoot. That would kill confidence. He can call plays designed to get the ball to Tatum, but he's not going to tell them that Tatum has to take the shot.