IMO Ainge seems to be a pretty good dude. I also think he was one of the better QBs we've had since Peyton.
He should be because there haven't been that many since Peyton and some of them have been awful at times, yet he sits in the middle.
Starting QBs since Peyton(at least 11 games)
Tee Martin
Casey Clausen
Eric Ainge
Jonathon Crompton
Tyler Bray
You could also include Rick Clausen who started close to 11 games
Now that I have actually put them in front of my face, I don't know that Ainge is in the middle. That would be as far as you could put him in any case