If his buyout is reasonable by today's standards or anywhere under $20 million, there is absolutely no reason to bring him back.Unless Capel does something very wrong and can be dismissed for cause, he'll still be here next year unfortunately. He can't recruit and retain players at all, which is his biggest black mark. Get used to 9 - 12 wins every year with a 20 loss season being the norm until he's gone. I remember when a 20 win season was our low water mark.
Pitt can't break the bank just to get a few additional wins and maybe a few more fans in the stands. The crowds aren't coming back until we get a good coach and we're winning big games against top teams and achieving 20+ wins for a couple of years. If next year Capel can do that, he'll possibly get another year.
If money is the only deciding factor in buying Capel out, then the AD needs to go too, because that person is clearly a failure raising funds and managing finances.