His accuracy could use some work, and sometimes he makes poor decisions throwing the ball (the pick last night was just bad). But those can be improved with some offseason work/film study. And with everything else he brings to the table, the impact of those mistakes can be minimized even when they DO happen. I thought his decision-making on the read option plays was brilliant.
One thing we've yet to really get a feel for is his improv skills. For all the good he did the last two games, it was mostly within the confines of the offense. Neither bammer nor SC ever really made him uncomfortable. It will be interesting to see what he does when things break down. That's when some mobile QBs (Manzeil, RG3) are at their best, and that's what can separate the good mobile QBs from the elite.
The only time that SCe came close to him he stepped up and rifled a pass to Pig for a first down. I expected mustard to come flying off the ball was so hot.