And I would not put too much weight on the obvious yet ambiguous statement that the question of whether Cassel will be replaced on this team is a "question of when."
His contract is up this year and he becomes a free agent. If he actually surprises all his haters and proves he can start, he will start next year - on another team.
If he proves he cannot capably perform his role and fill in for Brady, he will not be on the team.
Either way, I do not see him on this team past this year. As such, saying he will be replaced is about as insightful as predicting the sun will rise and set tomorrow.
As for those advocating throwing a rookie into the starting role, anybody want to sift through Belichick's
coaching history and enlighten us as as to when he has started a rookie in his coaching career? In the event you do not want to search the link and his history, the answer would be never. Not once. In fact his tendencies have demonstrated a preference for veterans and veteran back-ups. Might there be a reason for that? Anything different about college football and professional football?
The only way I see O'Connell in the starting role is if Cassel has a complete mental breakdown and physically cannot get the job done. The failing O-line on Sunday will give him a pass as it should. Brady has an incredible ability to sense pressure and step up, and Cassel does not appear to have it. Nor do most of the starting QBs in the NFL. As such, the expectation is he will get the necessary time to throw the ball and can get the ball to his target receiver. If he starts throwing the ball early when he has time, and only on a couple of occasions have I seen that in his 3 games, then you can start calling him gun shy and potentially replaceable this season.