Yeah, Fran has jumped around to a few different jobs in his career, but keep in mind that his first few gigs weren't in the Big Ten, either. Any job in the Big Ten is much higher profile than Lehigh, UNCG or Siena... Not that there aren't better jobs out there than Iowa, but I'm not overly worried about Fran bolting.
If he has so much success at Iowa that a bigger program poaches him from us, that means to me that he would be leaving us in a great spot to attract the next coach (a win-win for us, whether Fran stays or goes), which sure beats the situation we were in when we hired Fran, coming off of maybe the worst 3-year stretch in program history.
Or things may not work out as well as we hope, in which case, I don't think we have to worry about a big time program coming along, but I don't want to even think about failure...