Houston is really surprisingly bad. I don't get it. Even without Yao, their roster should be better than this.
The downgrade from Trevor Ariza to Courtney Lee is a big one.
The Rockets are a 35 win team without Yao.
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A couple of other factors in their slow start:
(1) Yao is 9th in minutes played
(2) Houston are playing a run and gun style game-plan which doesn't suit their starting frontcourt of Battier, Scola and Yao (+ B.Miller backup C). This isn't the Rockets of last season ... Adelman doesn't have a roster required for this type of game plan. Slow the game down and their performance will improve, especially on the defensive side of the floor (particularly Battier + Yao).
(3) K.Martin's and Battier's minutes have been lowered
(4) Kyle Lowry has missed some early games and the far less effective Ishmael Smith has played in his place. And now Brooks has gone down too. So their 1-2 punch at the point that was so effective from last season hasn't been in place often enough this year.