Iowa's. Receivers. Aren't. Good.
They:
Drop Balls.
Break on routes late.
Are undersized.
There's a big difference throwing to Charlie Jones and Sam LaPorta vs. Brandon Smith and Noah Fant.
Smith and Fant had burners, but they were also huge and could jump out of the gym. Run Fant on the seam and Smith up the outside, what do you do? Stick the free safety on the guy 4 inches taller than him and a quarter second faster? And even when Smith is smothered, if you throw it high enough they guy could go get it. You could throw them both open, and they had the ability to be physical and go get it.
Iowa doesn't have that guy. Every single year, Iowa should be combing jucos and the transfer portal for big physical receivers, since they rarely seem to be able to recruit them. ISU gets the Hakeem Butlerses and Allen Lazards and Chade Danielsses around here. Mostly because they do the plays like the jump balls that those guys thrive on.
As long as Kirk is coaching, you are going to see checkdown Charlie at QB. Because Iowa wins with defense.
Over the last five full seasons, Iowa has averaged 9.4 wins per year. Average winning percentage since 2015 is .716. That's getting it done, here.