So you want to blitz a mobile qb and go man on man in the back end. Good luck. Tell you what, chart the game and tell me how many times the Oregon or Ark St QB had the ball in their hands more than 2.5 and 3.0 seconds? It wasn't often. There is a negative to sending pressure as well. Had you read the article I linked, you would realize that, even before he arrived in Lincoln, Diaco is a keep the man in front of you defensive theorist. You can't do that when you are chasing.
You were expecting something different than what he is doing. That is on you.
With a less mobile QB and a downhill running team, think Iowa, Wisconsin and to an extent Northwestern and Minnesota, if they go away from what they do best to attempt to exploit your weakness, that's cool with me. If you tell me Hornibrook and Stanley are going to throw the ball 35 times to their WR, I would take my chances that they won't be nearly as effective offensively that if they simply ran their offenses.