Here's why I think it doesn't matter who you have running the show when you have talent on a team. Remember the Bulls team without a PG? Ron Harper, MJ, Pippen, Rodman, Longley. Pippen was the point-forward, MJ brought the ball up the floor as did Harper. None were true PG and Pippen and MJ worked just fine having 2 stars on the floor at the same time. Look at the Lakers championship teams. Derek Fisher is not your protypical PG, they had Kobe and Shaq, now Kobe and Gasol and also have another guy in Odom that needs the ball a lot to be effective. In the NBA, talent usually wins regardless if they are perfect matches because good players can adjust and win together.
I want the best players on my team because the best players will find ways to play together and win. I think Bosh and Rose would be perfectly fine being sidekicks to LeBron. Who wouldn't want a guy that can go off at any moment on your team? When you have a player like that you are going to get better looks on offense because the defense is going to be so occupied trying to keep him from taking over the game. The Bulls would definitely be setup to do a lot of run and gun with those weapons too, Noah and Bosh are very athletic for big men and we already know what Rose and LBJ can do with the ball.
I just don't get why you wouldn't want one of the top 2 players in the league on your team???