I don't buy this "Mancini is crap and Tevez carries them" rubbish either. Firstly, the Italian did his job last season by winning a trophy and achieving Champions League football.
Secondly, Tevez was injured for a large part of last season IIRC - and they still managed to finish 3rd. Players like Yaya Yaya, De Jong, Silva and Hart are just as vital to the team's performances and results.