I said it last year and I'll say it now, McCoy is Chad Pennington with a little more athletic ability, a better college resume, and more of an "it" factor. Funny how I got blasted here for ranking him ahead of Jimmy Clausen and giving him a late 1st round grade.
Considering a lot of NFL people think he can definitely possibly (my favorite word combination) be a franchise QB I think it's safe to say it's plausible. I'm not saying he will be, but he has shown the beginnings of potentially being that guy. I think he'll be somewhere between a Garcia and Brees, but he has the potential to develop into a Brees type. Brees' arm got better as his career went on and his deep ball got better.