That's not the whole truth.
McCarron was supposed to compete with Nate for the starting gig and he stunk the joint out and got moved to the Raiders.
JA was supposed to sit and learn until week 9 or 10 then get in the game but Peterbeater stunk the joint out so bad the kid got put in and got hurt.
Then DA and MB held the fort until JA returned.
JA was not getting the starting gig out of camp last year it wasn't the plan.