It was truly one of the biggest implosions I've seen, and even during it I was far from convinced TCU is/was anything special. Just a complete calamity for ISU's offense more than anything else. I actually thought the defense was mostly fine outside of the first 10 minutes and very end of the game. Just nothing the defense really could have done.
My point was that the offense was typically bad as we've become accustomed to. But the defense gave up 5 TD's and something like 15 yds per reception which was not typical of that unit.