I know I'm one of the more optimistic and potentially unrealistic fans on this site, but if the line is -21, I think the Illini cover.
Reasons:
1) UNC and WMU are both really good teams with really good coaches and players that have played in the same system for 4+ years. Our guys were in games #2 and #3.
2) Nebraska has some key injuries, youth on the D line and are only in Riley's second season.
3) Our O-line has been banged up from the outset. We haven't had our starting offensive line on the field except for maybe the beginning of the UNC game.
3) The bye week. Gave our guys a chance to get healthy, get more comfortable in our offensive and defensive system. Gave the coaches some time to figure out things too.
4) Seniors. We have a lot of them and the more comfortable they become in the system, the better they will be. Our D-line is better than what they have shown thus far. If they step up, the entire defense will improve drastically.
I'm not predicting a win for the Illini,Tommy Armstrong is too mobile, but a cover is in the cards which is improvement that we can take into the crucial Purdue/Rutgers must win games.
Go Illini!