If AJ can show he provides a spark to the offense, he plays. As long as he isnt making mistakes, going three and out he will be fine. Wanny even said as much, he expects mistakes but thinks AJ will also make plays with his arm to counter those mistakes. This doesnt sound like a coach that plans on pulling for a mistake.
The debate Jay got pulled for teh 2 int is a mistake. It was the 2 int in combination with the offense being lethargic. AJ came in and moved the ball every time, had it not been for some bad plays/calls/mistakes who knows what happens. I am not making excuses, I am pointing out those gafs are correctable and AJ moved the team. If he can do that consistently game to game, he remains teh starter.