Mark has a very fragile ego and has the deserved rap of folding at crunch time. He played generally well for the Jets but seemed to always fail at defining moments. He did the same thing with the Eagles last year. Could not be two more different temperments. Tebow won in Denver and somehow always seemed to make important plays when given the chance.
Chip Kelly factor here, and nobody has that figured out that I know of. Except a lot of players end up being surprised by what just done happened to them.
Bump to read later.