First off, I think UT is a premiere job in college football but I just don't see either Mora or Fisher as the next UT coach.
For Mora, the Pac-12 is an easier conference, he is in the recruiting hotbed of California, he lives in Los Angeles (a beautiful city with great weather and even more beautiful women), USC is going to be down with sanctions and that will provide a vacuum for UCLA to fill, it is his first year there, etc. I love Knoxville and UT but Mora leaving UCLA, especially under these conditions, seems unlikely.
I also understand that Fisher is getting some traction, which is somewhat odd to me. He would be a great hire but it is hard for me to think that he wants out of FSU so badly when he is 10-1 this year, he is in the recruiting hotbed of Florida and, because of the geography, also has easy access to Georgia and South Carolina recruits due to proximity, the ACC is an easier conference, and he is established there.
Don't get me wrong, any of these three candidates would be great but, in my mind, Gruden is the most likely out of the three and I do not think Gruden will be coaching at UT.