Same.
I think he showed in the Browns game he can make the smart safe throws just like Cassel can. He can sustain long drives to keep the defense fresh and he can convert tough third downs.
As far as Manuel starting the 3rd preseason game, I don't think this could be a dress rehearsal for whoever the starting QB will be anyways. The Bills will be missing Watkins, Ka. Williams, Woods, Clay possibly. The only thing the QB starting would get is to play behind the starting OL.