Why does Mark Sanchez Does not play well in cold wheater?

He is still young. He got the you know what kicked out of him by the Pats and does not yet know how to recover from that kind of setback. Although I am not a Favre fan, he has the confidence and experience to put a bad game behind him. I believe Sanchez will mature into a pretty good QB. Not this year, and not as good as Brady.