We've seen the ceiling for a regular season. 12-0 in 2015. It is attainable because of the division Iowa plays in is pretty weak overall. However with the level of Ohio St, Penn St, Michigan, & MSU right now Iowa will always have at least one brutal crossover game and Wisconsin has owned them for the past decade so while the schedule overall should be easy on a yearly basis, for Iowa is pretty tough.
Year in, year out over a long period of time, I would say 9-3 regular seasons are the ceiling. Purdue, Iowa St, Nebraska, and Minnesota are all probably going to be better in the coming years. But if they do make a jump all are in serious danger of losing their coach except for Nebraska. Plus Iowa just hasn't shown the ability to put in 5 quality seasons in the row since 2001-2005 which was their best stretch. They average record during that stretch was 8.4-3.
Year in, year out over a long period of time, I would say 9-3 regular seasons are the ceiling. Purdue, Iowa St, Nebraska, and Minnesota are all probably going to be better in the coming years. But if they do make a jump all are in serious danger of losing their coach except for Nebraska. Plus Iowa just hasn't shown the ability to put in 5 quality seasons in the row since 2001-2005 which was their best stretch. They average record during that stretch was 8.4-3.