God-Tier: Herman or any successful P5 that we can hire away.
Tier 1: P.J. Fleck/Les Miles
Tier 2: Jeff Brohm/Craig Bohl/Chris Klieman/Willie Taggert/etc.
Tier 3: Greg Olsen/Skip Holtz/Brock Spack, any unknown with unimpressive career.
Well for one, Tom Herman is not in "God Tier" because he only has TWO seasons. We don't know what his recruiting is like. Darrell Hazell had a magic season as well. God tier is Nick Saban, Pete Carroll, etc.
I am not sure you can put P.J. Fleck in the same tier as Les Miles. You have a title on your resume, 200 games, and a 70% win percentage, you are the top tier. That said, would he come to Purdue or weigh his options?
I think with this layout Fleck is right with Brohm, Bohl, etc. Career winning percentage of these: Fleck-28 wins, 57%; Brohm-28 wins, 74%; Bohl-118 wins, 69%. Troy Calhoun the one who is not too young, not too old has 75 wins, 59%.
I would put the former Tiller guys in Tier 3 because they truly know what they are getting into. I think that is why Tiller was successful- he worked here and knew the situation.
Holtz in tier 4 just because he could not win at USF which is a concern. He does have 118 wins, but 56%.
We will never know how many interviews they did but I respect that Bobinski made the change when it was time and has at least done his due diligence on the hire. I think any of these guys will do a decent job. Holtz maybe has a 6-6 ceiling. Miles may get us to 10-2 some day. The rest somewhere in the middle.