Hmmm. It didn't work last season did it?
How has the Rooney and Berbatov partnership flourished against Chelsea, Arsenal and Liverpool? Berbatov has been useless in all 3 and of all our strikers only one of them scored in those games... Tevez.
Tevez and Rooney DOES work. It flourished last season and both those players allow Ronaldo so much freedom to get around the area, something that isn't happening with Berbatov in the team, who for all his fantastic ability on a ball is just too lazy against big teams and doesn't work - his performances against the 3 mentioned above and Villa were embarassing. His star performances have been at West Ham (nice assist) and Celtic (two offside goals).
Tevez was poor against Villa, but so was everyone else and even then he wasn't the worst player on the pitch.
Tevez being dropped due to a lack of form is a fallacy, he was the in-form player when he was dropped then given 5 or 10 minutes here, it does your confidence no good at all really does it, nor does it give you long to correct anything.
So he did score then?
Or don't penalties count any more? Maybe someone should tell the authorities that Ronaldo didn't actually score 42 last season.