In a complete reverse-ferret from what I said the other day (well not really but), I think it's unfair to blame Ronaldo if Juventus have gone backwards. He's banged in more than thirty a season I think and even when they got knocked out last year and the year before he was amongst the goals (yeah he was anonymous against Porto fair enough, which I suppose is why people are angry right now).
I think he's done what he was supposed to do - score loads of goals - what I criticise is the decision to bring him in and distort the team around him. There's not much he could have done - at this point in his career - than bang in loads of goals. If he's scoring that many and the team are ten points behind Inter then the rest of the team are not pulling their weight, the mistake was in thinking that he could somehow come in and magically win the CL for them. In other words he didn't meet impossible expectations.