The way I see it is that the Celtics will have Pierce, Ray, Marquis, Sasha, and Pietrus to all throw at Lebron/Wade defensively.
Pierce and Ray obviously won't match Lebron and Wade offensively but it won't be THAT far off.
On the other hand, Rondo as always should have his way with whoever the Heat put on him and who is gonna guard KG if no Bosh?