How can you justify NOT starting AJ McCarron the rest of the season?

[The Caped Crusader]

NFL.com Draft Breakdown for AJ McCarron...which reads well with the game tape we have of him:

Quote:ANALYSIS
STRENGTHS Well-versed operating a pro-style offense and makes NFL-style progression reads. Is comfortable working from under center and in the gun. Mobile enough to sidestep the first wave. Good field vision, timing and anticipation. Very good short-to-intermediate accuracy (evidenced by a 66.9 percent career completion rate). Throws with accuracy on the move -- good wrist snap. Delivers the ball under duress. Has enough arm strength to fit the ball into spots. Consistent throwing mechanics -- has a smooth stroke. Good caretaker and decision-maker. Mature leader. Smart and articulate. Highly competitive team leader -- holds teammates accountable. Very well-prepared. Directed back-to-back national championship offenses.
WEAKNESSES Surrounded by an NFL-caliber supporting cast with a very good offensive line that provides a lot of time to dissect the field. Does not have a big-time, vertical arm. Average athlete. Makes occasional bone-headed decisions. Heaves the deep ball and forces receivers to make adjustments. Does not drive the deep out.
DRAFT PROJECTION Rounds 2-3
BOTTOM LINE An efficient game-managing quarterback who has shown he can carry an offense at times throughout his career, but more often is dependent on a terrific supporting cast. Grades out most highly for his intangibles and decision-making, knowing when and where to go with the ball, and could earn an NFL starting job.