As for Minny's running game. Cobb has good numbers, but if you take the Eastern Illinois (14 carries-71yds), TCU (15-41), and Northwestern (30-97) games, he's gotten 209 yards on 59 carries for 3.5 ypc. Heck, if you take out the 1 long run he had against Illannoy (which I know you can't) he had 51 yards on 21 carries, for 2.4 ypc.
Team rankings rushing defense
Iowa--37th
TCU--41st
Northwestern--66th
Illannoy--123rd out of 124 (ahead of Troy), allowing 263 ypg and 5.3 ypc WOW!
E. Illinois--50th in 1-AA/FCS
His 3 biggest games came against Middle Tennessese St (81st ranked rushing defense), San Jose St. (115th), and Purdue (86th).
I'm not saying he's not good, but we can certainly slow him down.