Well, I don't know if I'd go so far as to say Tuel is a quality NFL QB, but I do think with time he can be a successful backup QB. Mostly my point was that I think his physical skillset isn't as terrible as people seem to make it to be. I think his arm strength is pretty decent, and he was slinging it with nice velocity the other night. I also think he is a good athlete and can scramble quite well, as Collinsworth pointed out during the game.
I actually think he can be fairly comparable with Fitz, given continued development, only with a slightly better arm.