This is one of those curious questions fans always ponder, and to discover the actual answer is the last thing any fan of our team desires. AJ has the talent and the smarts from what he has shown thus far. But you never know how a young man will respond to that 4th qtr pressure until he is placed in that position.
Back in the Early 90s, I, like a lot of fans, had a 'love-frustration' (never hate) relationship with J. Barker. He was the consummate game manager and actually had a great arm and could make all the throws. But he had a terrible tendency to go high and wide on many throws. And me, like many others, wondered how the backup would do. Then we learned. Jay went down to an injury and the games he missed were a nightmare. I learned my lesson as a fan about wanting the next guy. Not saying anyone is wanting that to happen to Greg. I know none of you do. But when I see Gmac take a big hit or hobbling on the sideline, I get nervous, no matter how great we know the next guy (AJ in this case) will be when his time comes.