I haven't read through all the posts, but here's my take.
First, we need to evaluate what we want to see in a QB, starting or otherwise. Here are the things I want to see in order of importance:
1. Football IQ. The greatest asset I want my QB to have is his ability to read defenses. Moore's football IQ is very high, I don't think anyone doubts this. He passes this criteria with flying colors.
2. Accuracy. From what I've seen of him at Boise and the few opportunities he's had in preseason, his ball placement seems good to very good. Not only does he give a chance for the receiver to make a play, but he has the ability to hit the receiver in stride to maximize his YAC potential.
3. Pocket presence. Although he's not a "mobile" QB, I believe he can move around the pocket enough not to take a costly sack or has the sense to throw the ball away to see another play. You can file this under footbal IQ as well.
4. Physical stature/ arm strength. This is what's kept him out of games, imo. You don't necessarily need a rocket arm to succeed and in comparison to football IQ and accuracy, I think the whole "golden arm" assessment in evaluating a QB is overrated. His lack of height and weight concerns me more. GM's tend to fall in love with the "arm" far too often only to have it bit them in the @$$.
If you judge Moore by these criteria, who does he remind you of? Romo? Breeze? And in some respects, Wilson? I forget if it was Broaddus or Eatman who said that ideally you want your backup to be as close to your starter so the offense doesn't have to dramatically change in case the starter goes down. This made all the sense in the world to me and it changed my perception of Moore. Kellen Moore is the closest thing we have on the roster to Tony Romo. It's too late in the process to give him a start (the N.O. game would've been my choice), but it wouldn't shock me to see him as our backup next season.