So there were 4 games already set in stone, so on June 1st of last year Barta had yet to schedule games against Utah State (neutral site, Q2 game), Portland State, Western Michigan, UMKC, and Western Illinois. So Barta should have known what the NET ranking would be for those teams, of course all these other teams you want him to schedule are automatically available on the dates he's looking to fill, right?
Back on June 1st of last year nobody knew Iowa would be in this position they are today. Hindsight is always 20/20, I'm sure back then Fran wanted easy games so they could get this team gelling without getting challenged every single night. Iowa was predicted to be in the bottom half of the Big Ten. When the non conference was originally released I figured Iowa would go 9-2, I was hoping Iowa could win 9 games in the Big Ten to at least get on the bubble going into the BTT. Barta and Fran could have been looking at it the same way.
Another point to consider a 109-61 victory over a Western Michigan probably does more for the NET ranking than 10 point win over a decent Q3 opponent since offensive and defensive efficiency is factored into the NET. Heaven forbid Iowa would have lost to a Q3 opponent on their home court, which could have happened when the team is still figuring things out in the non conference. I remember Iowa struggled to beat NC Central, it was a 5 point game at the half.