Even though I don't see how you can justify placing an 8-5 team above a 13-1 team (even with a weak schedule), ND did just beat #23 LSU. Given the hate-on everyone has for G5 teams not named Boise or ECU, I could see it happening.
Averaging out the Central Mean between divisions on the Sagarin rankings puts it at this:
6. IA Independents - 67.83
7. Missouri Valley (AA) - 64.12
8. MWC - 62.065
9. CUSA - 61.40
10. AAC - 59.93
11. MAC - 56.94
12. SBC - 56.60