This recruiting class for Iowa is bad on it's own but how many guys bail on the program after this next season? If Kirk doesn't correct the internal issues they are going to lose guys from there 2019 and 2020 classes. Plus these guys don't have Doyle to turn them into monster studs so that may push some guys out too.
I think you also have to be a bit worried that the kids who have already signed might be feeling some pressure as well. The narrative is out there and won't go away until Brian is gone, signing day is still a long ways off. They will always have some of Kirk's true believers growing up in the state who will be oblivious but you can't build a program on those guys, especially without Doyle.