I think Campbell will be just fine, as far as win/loss record goes at PSU. He's a comptetent coach and let's be honest, with expansion, there is no conference that's a juggernaught. It's about being able to avoid all the top dogs in the same year. In fact, that's what Campbell excelled at at ISU, beating teams we probably shouldn't.
I think Campbell's issues will come, if they come, from losing that headscratcher to Rutgers or Purdue and then how he handles the attacks he's going to get from the fanbase.
I lost some of respect for Campbell with how he handled "Hot Seat Guy" and that was just one guy. It's going to be how he's able to deal with, on a super scale, what he didn't really have to deal with a whole lot at ISU. As I said, I think when you look back, his win/loss record will look just fine, if not good.