I don't really understand the point of the second and third paragraph. Henne played better. Talent is irrelevant in this context...you can be the most talented QB to ever play, but if you play like crap and throw twice as many INTs as TDs, then your talent isn't translating.
To the people saying "Well, Sanchez stepped up in his biggest spots", you're having short term memory and only recalling the playoffs. Henne led game winning drives. He also made some huge 4th quarter and OT mistakes. The Titans game comes to mind (mostly because I was in the stands for that game), but to say that Henne shrank when he needed to step up is ignorance.