Rebounding has been the biggest problem for the Heat thus far. Their lack of size has been taken advantage of time and time again this season. However, at the end of the day, rebounding is about heart and how bad you want it. Many of the best rebounders in the game have been undersized, i.e Charles Barkley and Dennis Rodman.
The Heat have got to want it. They have got to realize that rebounding will likely be the death of them if they don't fix it right here, right now. There's no reason Haslem should ever come in and grab more rebounds than Bosh, who plays a significant amount of more minutes. Coming into the season Bosh came in hungrier than ever and looking much bigger, ready to bang inside with the bigs. But we have yet to see that side of Bosh. Even if his shot isn't falling, there's no reason he shouldn't be rebounding.
However, you can't put the whole blame on Bosh. Effective rebounding must be executed as a team, not by one person. All five Heat players on the court for the Heat must be focused on boxing out and closing out defensive possessions with boards. This is the most important thing the Heat can focus on as we near the post season. There's no doubt Miami is talented, but it will the little things, like rebounding, that hurt teams most in the playoffs.