I don't know many of those names, but I do think it would have to be someone with P4 experience, and Kelly would be interesting given the LSU connection. It's one thing if that were to pan out. But it's another, and foolish IMO to just hire someone from the MAC. Someone with a history of winning at this level is a different dicussion.
I do appreciate "naming names" because most GS haters (and I don't put you in that bucket) just want to scream and shout. A college program can't be "single" or just go with an Ash or a Flood as we saw how that panned out.
Fans are biased and/or don't pay attention and generally look at the big hot names of the moment. They all can fail and succeed. It doesn't really matter if they're hot or if you pay them a lot or a little, the wide variety of outcomes is still the same.
If the candidate has a resume worthy of an opportunity, I can live with it. I didn't want Ash but he was a coordinator who came from a championship team. It failed spectacularly but his resume was worthy of a shot. No different than Mullen or Herman or Lanning or Smart ..etc...some will work and some won't but good coaches can come from anywhere.
People look at Cignetti as great now but he wouldn't have had to wait til 63 to get his first P4 job and at the losingest program in the P4 to boot, if decision makers could look beyond their bias of where he's coached and gave him a shot. You have similar under the radar types like Campbell and Elko who have done well along their careers. I posted an article here where Cignetti said, if you give me average resources, I can win.
If you're a school like us, that's what I want to hear. If you need this, that and the other thing, this isn't the place for you. It doesn't mean such a person would win here and it doesn't mean starve the person of resources but there are limitations here and that's the attitude a coach should have coming in. If not then it's not the right fit. Guys who have done without, which happens often at these lower levels, and can still win is a good place to look. No guarantees but a characteristic I think is important.
On the other side of it, Kelly, Riley and Fisher were big hires. They have everything they could ask for a haven't panned out to date. I still like Kelly and Riley. Kelly has won in uphill situations but sometimes it doesn't pan out due to fit or whatever reason.
On some level, it's somewhat random of who will work. It takes a little luck to find that fit. Make your best educated guess and hope for the best. The general opinion is throw money at it and boom problem solved. We've seen how many times that's not the case. If anything, I have the opposite view. Be conservative and don't bet the farm on anyone because you don't really know for sure how things will work out for anyone. If you're wrong well you haven't bet the mortgage on it and you can try again without issue as opposed to being stuck with a lot of wasted money. In addition, you'd have more leverage in negotiating a sensible fair to both parties contract as opposed these crazy one-sided deals given out.