The next tier IMO is Okie State, VT, Oregon, Miami, Stanford, TCU, Michigan State, Washington (just off the top of my head).Nobody's perfect, can't argue with the results of the Iowa football program during KF's tenure though.
Not quite a big time program but right in that next tier.
I don’t see Iowa in with those teams. I think Iowa is more in line with teams like Kansas State, West Virginia, Miss St, maybe Utah.