put McCoy on the vikings and then cut his numbers in half. That is the best he would do without a QB or a passing attack. Put the offense on his back and he probably wouldn't even have half the numbers AP had. Factor in the coaching, the team, the WR/QB involved in other facets of offense that help balance out and he would not have close to the numbers as Adrian Peterson. Like comparing Barry Sanders and Emmit Smith... Give Barry Sanders Emmit's line and offense during those years he was in dallas and I bet Barry would have been rushing for 250-300 yards per game.