Regarding Hayden Fry and hiring staff. I didn't even mention some of the others who were crucial. Bob Elliott - former Iowa DB. Bret Bielema. Jim Leavitt, former USF HC.
Bob Elliott was groomed to succeed Hayden Fry. But in Fry's last season at Iowa, both Bob Elliott and Hayden Fry developed cancer and were treating for it. Bob Elliott died at age 64 in 2017 (Bump Elliott's son).
Elliott's cancer threw the coaching search into chaos, and it came down to Bobby Stoops and Kirk Ferentz. Stoops set a deadline, and Iowa wanted to interview Ferentz before deciding and the interview came after the Stoops deadline, who was offered at Oklahoma. You know what happened from there.