I think CJB gives them a dimension they've not had in a while. Honestly, I'd be happier of ruddock stayed, he isn't very good and can't throw deep. CJB has ability to stretch the field both throwing and running, although he's not real quick just long legs.
Iowa has far greater problems than a newer QB. Oline will be worst since KF took over IMO. Heard it was brutal in spring scrimmage. WR, outside of Tevaun, will be meh..LB similar to us. Interior Dline will struggle depth wise IMO. Iowa needs to pray that any of the current Oline starters don't go down before the season cause if anyone does ouch. I really think their offense will struggle a lot.