In all honesty, I don't see how the Bears can go into the season with Grossman as their QB next year.
If Brady turned in a Super Bowl performance like Grossman did tonight, he'd get some criticism, and then everyone would move on because he's proven himself many times over.
If Manning turned in a performance like that, he'd get a lot more heat and face the wrath of the "choker" label, but no one would seriously consider getting rid of him in Indy given how good he's been.
If Brees turned in a performance like that, he'd get knocked for it and would be under scrutiny as a young guy who couldn't handle the limelight in his first big chance, but he'd still be the unquestioned starter in New Orleans next year.
But Grossman--man, all year long, even after wins, the fans were griping about him. And now he laid a turd the size (and odor) of Philly. I seriously don't see how he can be the leader of this team next year. Every single little fault--and I mean EVERY fault--is going to be booed and criticized and he is going to be constantly harassed, even when things are going well. It's not going to be healthy for him or for the team.
I don't know when his contract is up, but I think he'd be well served to look elsewhere if a good situation is available to him. I think life in Chicago is going to be hell for him.