Perkins is more important to the Celtics than Bynum is to the Lakers. Seriously. Without Perk, the Celtics are a legitimately bad rebounding team, and the team that wins on the boards wins in this series.
Well, in fairness, the Celtics are a legitimately bad rebounding team with Perkins too. Now, it just might get embarrassing. Maybe Shelden can provide some decent minutes, considering the only thing he can do is rebound.