Before the Montana game, SDSU was holding opponents to 13pts/game. If they can do that again, they should make the play-offs. (Once they get there though hopefully they can hold their opponent to less than 50 pts) Alot of points in the Montana game weren't on the defense though and were on kick returns and fumble/int returns.
The defense still brings back 7 starters and have brought in a top JUCO DE to take over for Batten. (The JUCO end led the #2 team in sacks and had offers from FBS schools.
As far as O'Brien, he showed just as much as Moehler showed so what does that say about NDSU?