Percy Harvin's versatility, athleticism and toughness have made defending him difficult for Minnesota's opponents.
Figuring out the most effective way to use him has been a challenge for the Vikings, too. The experiment was so uneven last year that Harvin demanded clarity from the coaching staff about his role.
But Harvin and the team have found a groove this season. Harvin leads the NFL with 698 combined net yards, including kickoff returning, rushing and receiving. He played 76 percent of the offensive snaps in last week's win at Detroit, and he was deep for all three kickoffs by the Lions. The first one he ran back 105 yards for a touchdown to start the game.