The verdict should have been in on him long ago. Whether he wins or loses the next four should make no difference to his fate what so ever.
If the team is actually going to allow these last four games to be the decider, when even if they win them all can't result in a winning season, then it is just more evidence that they are intent on finding any superficial reason available to keep him rather than holding him accountable for half a decade of bad football.
In other words, if they don't already know, then they're screwed up no matter what they end up doing with him.
