put aside Brohm's personal connections to Louisville and the city, making that move right now could make a lot of sense from his perspective....
Wisconsin and Nebraska have been way down this year and he still only backed into winning the West. IF Luke Fickell and Matt Rhule really are legit coaches, both those programs will get better. Fast. And they are above Purdue in the pecking order historically speaking. Not to mention when USC and UCLA join and if they keep West/East divisions- well his division just got even tougher. Now if they decide to move Purdue to the East to balance out the divisions- he's going to a division with Ohio St/Mich/Penn State automatically in front of him with huge recruiting advantages over him.
At Louisville not only is that program committing serious resources to NIL in order to recruit higher end talent than he can get at Purdue, he's got an open opportunity to take over a terrible conference and win a division on a yearly basis where his only real competition will be one team: Clemson- and it's a Clemson team that has been trending down the past 2-3 years.