Unlike the NFL, college defense stats include sacks as negative running yardage instead of negative passing yardage. The good news is that, if you include sacks against passing yardage, the passing defense is much better. The bad news -- rushing defense is worse.
None of the NCAA stats take SoS into account. The folks at football outsiders (http://www.footballoutsiders.com/stats/ncaadef) do look at defense stats that take this into account. M is ranked #62 in overall defense, #83 in rush defense, and #48 in pass defense.
The rushing defense will need to be better than that this Saturday.