Bluder didn't make the Sweet 16 until Year 15 at Iowa. Ironically, using Bluder as the comparison is perhaps the best case you can make about keeping Fran. Bluder's first 13 seasons at Iowa were very similar to Fran's - good coach that consistently makes the tournament, but never got past the first weekend.
What is strange about Fran is how close he's come multiple times to having truly great teams:
- '13-14: Iowa was in KenPom top 10 in mid-February. Ended up as an 11 seed and lost in OT to Tennessee, who then went on to the Sweet 16.
- '15-16: Iowa reach KenPom #1 in February, was in the AP top 5 for multiple weeks, ended up as a 7 seed losing to Villanova in the 2nd round.
- '20-21: Top 10 team virtually all season, #2 seed.
- '21-22: Won 10 of last 12 games entering NCAA Tournament. #5 seed and trendy Final Four pick.
Each of those teams looked like real contenders to make a tournament run. Each of those teams had very high ceilings. Unfortunately they did not play their best when it mattered most. Ironically, Fran's team that got the closest to the Sweet 16 was arguably his weakest Iowa team that made the NCAA Tournament in '18-19 which pushed Tennessee to OT. I think it's also worth considering that the '19-20 team had a real shot at making a run if the tournament hadn't been cancelled - likely would have been a #5 or 6 seed. Also worth considering how much different things would look without the tragic death of Nunge's father. Nunge would have made an enormous impact on last year's and this year's teams.
Ultimately, do I think 13 years should be enough time for a coach to make it to the Sweet 16? Yes. Do I still think Fran can get Iowa there (and beyond)? Also yes. Any team good enough to get an at-large NCAA Tournament berth is also good enough to make a run if they play their best basketball and catch a few breaks. The NCAA Tournament is chaotic, and we've seen some rather mediocre teams suddenly play great and reach the Final Four.