The biggest problem Cam has is playing under pressure. When the heat is on he reverts to his instincts rather than learned mechanics. I think that is part of why he struggled early. Once we were out of the playoffs the pressure to win was off for him. The great QBs can stay cool in the pocket under any circumstance. Cam can leave the pocket and gain 10 yards but that hurts his development as a passer when 10 yards isn't enough in the 4th quarter.
ahem. you see what happens to brady in the superbowl vs that giants front four? cam's not the only guy who abandons proper mechanics under pressure. even peyton gets that way against some defenses. if there isn't room to step up, you can't use proper mechanics. its not a matter of toughness either, qbs would rather throw without proper mechanics than have the throw impacted by a defender.