Michael Vick suffered career lows last season in yards per carry and rushing yards per game. At 32, it's fair to say that the quarterback's explosiveness on the ground is not what it once was.
UPDATE: It's on! The Twitter war between Vick and McCoy has begun. McCoy started off semi-graciously, tweeting: "Top 3 fastest man on the TEAM @mikevick," but 30 minutes later his competitive nature returned and the light-hearted sparring began: