Here are some very telling and factual defensive statistics that should concern you (and also prove my point). KSU, like I mentioned, is allowing 409 yards per game, the only team in the North allowing more yardage is ISU (435 yds per game). KSU is LAST overall in the entire conference in passing yards per game (allowing on average 291 YPG). Rushing defense has fared a little better, but that's mainly because they teams KSU has faced so far were pass happy teams. Since Nebraska passing offense is as effective as a slingshot in a nuclear war, expect Nebraska to run the ball up to 35 times. Against the top offense in the conference (TTU), KSU's defense allowed 66 points and 739 yards of offense. Nebraska's defense allowed just 24 points, and 259 net yards of offense. There's no arguing what the statistics show. Obviously, those game comparison's don't tell the whole story, but against conference opponents KSU's defense hasn't been anything close to average.
In KSU's defense, they have excelled in one important area of the game, and that is their turnover margin in which they lead the entire conference (+10).