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A former state 100- and 200-meter champion from New Jersey, the 6-1, 208-pound Peppers has been the ultimate X-factor guy for the Wolverines and could be an even bigger factor in new DC Don Brown’s scheme. "He’s one of our best cover guys,” said Jim Harbaugh. “He’s our best nickel guy by far. He can play linebacker. ... He can rush the passer. He can cover anybody. Put him on the other side of the ball, he’d probably be our best slot receiver. He could give anybody a run for their money as our best tailback. He’s a Jim Thorpe type of guy. … I’d hate to diminish anyone but off the top of my head I can’t think of anyone (in college that I’ve coached) more athletic than Jabrill.” Peppers displayed his blazing speed this spring when he clocked a 4.34 40 last month. "He’s the most explosive human being I’ve ever seen,” said star TE Jake Butt.