Looking ahead to the August 31st opener against Central Michigan

I don't know much about their QB situation coming into this season other than their 3-year starter Ryan Radcilff is now gone and junior-to-be Cody Kater was the only other QB to take snaps last year, finishing 2 for 4 with 12 yards and sack.

Their running game is a different story, however. 6'0" 221 lbs senior RB Zurlon Tipton accounted for 1,779 yards last year (1,492 rushing) and 20 total TDs (19 rushing). He has been named a preseason candidate for the Doak Walker award, and pigskinprospects.com ranks him as the #2 RB in next year's NFL draft. Granted most of his games were against lesser competition. MSU was the best defense he faced, and they held him to 62 yards on 11 carries (5.6 avg) and kept him out of the endzone. What are the chances this guy gives our defenses fits 30 days from now?  Do we need to be worried?