That's a very good and clear way of putting what we've sort of been dancing around. Vick has big upside, but it will take a lot of things breaking right--ypa that defies history, unusually high number of QB touches, high number of rushing TDs, no injury, minimal garbage time duty for backups, no increase in carries for Eagles RBs, continuation of career highs in almost all stats--to make him + RB16 or so beat out a very reliable Peterson + QB4 or 5 combo.
So tell me what's a unusual amount of touches is it 34 att per game? The eagles avg that the last 7 yrs is it 6-8 rushes s game? Last yr he was at 33att and 8 rush a game and that was his 1st full yr Is it not reasonable to expect an improvement in his 2nd yr? Ok u say he can't keep up 8 y/a but isn't that exactly what mcnabb did the season before so that's. 8 y/a 2 yrs in a row so is it farfetched to expect that again
McNabb actually achieved a YPA above 8.0 twice in his career before doing it a third time in 2009. He even hit 8.4 one season! However, we're not talking about everyone who hits 8.0 YPA--we're talking about people who hit 8.0 YPA on over 500 attempts, because that is a particular threshold at which Vick passes for 4000 yards (which you believe to be a conservative projection). That doesn't happen often at all. One reason is talent, accuracy, the quality of receivers, the fluctuating strength of opposing defenses, and everything that makes one quarterback different from the next. Another big reason is that YPA tends to be a better indicator of efficiency than it is of volume. Step back for a second and think about it--if a QB has a high YPA, he needs fewer attempts to move the ball down the field. He's more efficient. If you're passing at an 8 YPA clip, it takes you 5 passes to move 40 yards. If you're passing at a 6.5 YPA clip, you need a little over 6 pass attempts to travel the same distance. For fantasy purposes, it doesn't really matter--all we care about are the yards and TDs. It does matter, however, when you're projecting stats.
It's very hard to have it both ways. If you think Vick is going to pass at 8 YPA or better, it's not likely that he's going to have the opportunity to get anywhere close to the 530 pass attempts you're suggesting as a baseline, and certainly not the 600 you mentioned at one point. He won't need to! The team really has to be crazy all-in on passing to achieve that YPA at that volume of attempts, and I'd argue that Vick's proclivity for rushing (and removing pass attempts for himself, really) would make it nearly impossible. I know he was "on pace" last year, and you can repeat that till you're blue in the fingers, but most people should at least understand the huge challenge that would be for both Vick and the team.