There is NOONE can shut Dirk down, slow him down a little bit, but shutting down? You should have watched. In the Portland series, they threw Aldridge and Camby at him; facing LA, Dirk had to deal with Gasol, Bynum, and Odom; in the conference finals, Dirk faced Perkins, Ibeka, and Collison. Look at the size, Dirk had to deal with. So far, Aldrige and Collison did the best job guarding Dirk. But he still managed to shoot 46%, 57% and 56%.
Heat on the other end, their interior defense is weak, and they were outrebounded easily by opponents. Chandler and Haywood, are pretty good interior defenders, especially Chandler.
As for driving to the hoop, have you noticed how difficult it was for Wade to finish around the rim? That's why I am saying he's injured.
Let's wait and see.