I'm with ZMANN.
Vick is a guy that with a career 50-55% completion percentage that put up a 63% last year. His average completion was ~6.5 yards, then he goes for 8.1. Rushed for 9 TDs on 100 rushes (11 rush/TD) when he's averaged 24 rush/TD for his career.
Don't you think there's going to be SOME regression? If he plays 16 games and gets the stats he did last year total (not extrapolated), I'd be more than happy.
There's a saying in fantasy sports "You can't win a league in the first round, but you sure can lose it."