People will need to reset their expectations on what good defense is. An offense like Frost's puts a ton of pressure on a defense. They are on the field a TON. you need to look beyond the face value stats. That defense was good enough to go undefeated. My guess is (Like me) most Husker fans watched the last 2 UCF games and are drawing a superficial conclusion that the defense is terrible. I would say (like I had to) take a step back and look at the big picture. With this offense I don't care who you roll out there, yards/points will be allowed by the defense. The thing that helped paint the picture for me was looking at margin of victory.
UCF ranks 3rd with +22.8 in the country, behind only PSU and Bama. (that is not a mark of a terrible defense) To me this becomes very impressive when you consider how the MOV looks without the final 2 games. The UCF defense played very well for a group that had to defend 76 plays/gm
It gets even more impressive when you look at the staggering improvement made in a very short time. 2015 MOV -25.8, 2016 MOV +0.4, 2017 MOV +22.8. (that seems to me to be a sign of incredible coaching, and playing complementary football)
UCF also boasts the #2 Turnover Margin per game at +1.2 - on the back of the #4 overall takeaway/gm at 2.5 (Again... not the mark of a terrible defense)
At the end of the day people will look at it how they chose. I get it. I am a defense guy myself. I LOVE seeing smothering dominant defense. So I will have to keep the big picture in mind as well. What I cannot argue with however is the above stats that to me shows that Chinander's defense is much better than a superficial glance would suggest.