It's not that broken.
1) Get firing going. If you are in a big six schools, you need to go to the NT, at least once every six years. If not, the firing should begin.
2) Make it a little easier, not that much, to get the job. Right now, it's one letter grade over... to get the job. Make it half a letter and it will change the job process, make it easier.
3) Longshot should be fun. It's impossible to get a longshot job right now. It's a good idea but getting a longshot could be decided by two things : 1) nobody else is applying. 2) you played the offense and the defense the team you are a longshot for is playing. You're reputation is good.
Honestly, Tarkanian D1 is pretty competitive and we keep getting more owners. A-10 is almost filled now. People are stacking in mid-majors division. There are no big six teams opened except B+ rep... and they will be Grabbed as soon as some team qualify.