I'm sorry people, but no matter what excuse you want to think up for him, Schumacher is not the man he once was. Rusty just doesn't cut it after 4 races, I mean come on, its only been 3 years. Lauda came back after a similar amount of time and won his 3rd race, ok he wasn't as old but he wasn't exactly doing much racing in his short retirement! Not to mention Schumacher enjoyed a full testing programme, a GP3 test and various karting events. Plus he has kept a head for racing by competing in the ROC and those motorbike outings.
There have also been old drivers before who have delivered, although not really in the same circumstances.
Basically, Schumacher is an old(er) man now, he doesn't have the killer edge to him because he has nothing to prove. In 1991, he had a goal - to win, to be world champion. What does he have now?
The Schumacher of old wouldn't be hiding behind excuses like "the car doesn't feel right" and so on - he would drive around it. He has had understeer problems in many cars before and has driven around the problem to great effect...it was part of what made him such a formiddable driver.
I just don't think Schumacher is as mentally committed as he once was, he's not a young man out to prove anything, he's just here to enjoy his status and the F1 atmosphere.
Not to say I don't think he's trying to beat the younger guys or he doesn't want to win, just I don't think he has the killer drive now. It was noted on the BBC by Coulthard that he definitely has changed in interviews these days - before he would be short answers and no-time-for-this attitude whereas now he's far more relaxed.
"He has to adapt to the car", "the car will be fixed later on"...these are not comments I would attribute to the Schumacher of old. Rusty? 10 years out of motorsport-Badoer is rusty.