IMO, Clemens is the kind of guy who may not do it the "conventional" way, but he just seems to find a way to make a play when he needs to. It is frustrating watching him throughout training camp, "scramble" in a 7 on 7 drill to extend a play, but this is who the guy is. The TD pass was a perfect example of what the guy does. When he was pressed into duty in 2011, that's exactly what he did. Maybe not the prettiest thing to watch, but he finds a way to move the team.
I see a lot of the same qualities in Austin Davis, although he is not as "patient". When he leaves the pocket, its usually to just tuck and run, without looking to extend a play to actually THROW the ball downfield. Which, IMO, is pure inexperience. The bigger concern for me this year, has been his lack of accuracy when he does in fact try to throw the ball. All too often his throws are either behind guys, or just not even in the area for a guy to try to make a play on the throw. Lack of confidence in his reads? Maybe, but he showed more LAST YEAR throughout training camp, and in Preseason games.