If your No. 2 isn't good enough to be a No. 1, but many fans think he is, don't hesitate. Get rid of the guy. Get rid of him yesterday. Bishop is one of those latter cases. Running quarterbacks make the spectacular plays crowds adore.
Few fans notice how often running QBs become QBs with a permanent limp.
Every time Bledsoe does something wrong, that subset will shout that Bishop should get a chance. People wanted Bishop to play last December when he couldn't beat out John Friesz as No. 2. This is a formula for disaster, and Belichick is surely smart enough to know it. Coaches, however, like generals, tend to fight the last war. In Belichick's last war, the Jets' Super Bowl hopes went down the drain in 1999's first game when Vinny Testaverde got hurt and the club had no adequate backup in place.