I saw a stat one time that showed something similar to this has happened like 5 times in history, and Iowa had 4 of them or something.
Kirk Ferentz claims to know nothing about offense or quarterbacks so he doesn't like talking about it. He also reminds people he's won a lot of games. He doesn't seem to get there's an obvious place to improve to win a hell of a lot more. I think he'll be gone in the next 2-3 years.