As LouisEly has stated money. UW may not be able to give out a contract like a Michigan or Ohio State but they can still give out a big payday.
If you are going to replace Fickell you better get someone who is better than him and not a mid major college coach who won't be better than who you are replacing. You don't want the recruiting to suffer and under Fickell the recruiting has been far better than it was under PC. Going from Bielema to Anderson and then to PC really killed the Badgers recruiting. Anderson wasn't all that bad at recruiting it is just he couldn't get the recruits he wanted due to UW's academic requirements. PC wasn't good at recruiting and you can see that in last years team and during PC's last year. PC is the reason this program is in the trouble it is in. I will say this again he should have been fired one or two years earlier when he first started showing he wasn't interested in recruiting.
The Badgers lost out on so many good recruits because PC decided he didn't want to do recruiting anymore. Leonhard was starting to do the same. Neither PC or Leonhard were big on doing the recruiting part of the job they just wanted the HC position and nothing more. In college you can't do that you need to be able to recruit players. You just can't be the HC and that is it. It doesn't work like that in college football. If you want to do that then go to a Conference USA, MAC, WAC or go coach in the D3. You can't expect to just be a head coach in division one football in a major conference.
So if you want to go with someone like Jason Eck then the Badgers football program needs to move out of the Big Ten. You can't stay in the Big Ten and hire someone like Jason Eck or someone like Leonhard (who doesn't want to recruit). You just can't do that you have to find someone who can recruit and can change with the times.