Ferentz has been crushing it the last 5 years. In those 5 years Iowa has a 24-1 record vs non bowl teams. Against bowl eligible teams Iowa is 23-18. That is how I spelled out earlier in this thread how teams get to 9 wins.
To demonstrate how good 9 wins per year is, CMC would have to have two consecutive 11 win season to get to a 9+ win per year average. That is after winning 23 games over the last 3 years. If feels like some ISU fans think that 7.66 wins per year over 3 years is close to what Iowa has done over the last 5 years, but it isn't even close at all. The only P5 teams with more wins than Iowa over the last 5 years are (Clemson, Bama, OSU, OU, LSU, Georgia, Wisconsin, and Penn St.)