Before you go off on some weird "Yao ain't worth it" tangent, get steady with the facts. They are winning without Yao right now. But have you forgotten they were winning WITH Yao before - like for 12 straight games.
However, it should also be noted that the Rockets are scoring 10 more points a game during the winning streak without Yao, while defensively, they have improved by 0.6 points per game. Improved both offensively (+10) AND defensively (-0.6).
Get rid of the bum.