I'm curious to see how he (or whichever guy takes significant snaps) carries the ball and reacts to taking hits. Presumably our QB(s) will be rushing sometimes, whether by design, or scrambling/escaping the pocket, or both. Haven't really seen that around here in a long time, so I'm looking forward to the new threat and (hopefully) the added advantage it brings.
Things I'm looking out for:
How is our QB's ball security?
Can he take licks and still be sharp, not just one play to the next during a game, but also game after game and into the season?
Does he avoid hits (slide, run out of bounds) when he should?
Does he have good vision and awareness (e.g. get to the first down marker on a 3rd down scramble, or keep eyes downfield to find the receiver breaking deep as he thinks about running)?
Is he TOUGH?
Lots of interesting variables to keep an eye on. And it's all the more interesting because we just haven't had that dimension around here, so we're not used to the impact of these variables.
I'm excited, man. Should be fun.