I do not know if given time to do his own recruiting Jones will succeed at getting enough good players to UT to win. Even if you are his strongest supporter there is absolutely nothing in his background that proves he will. IMO, his success rises and falls on that. (FWIW, neither Freeze nor Sumlin had highly rated recruiting classes either before taking SEC jobs).
Jones has a good track record of developing players. He seems to be a well above average game day coach. The latter was definitely not true of Dooley. But that won't be enough in the SEC like it has been for him elsewhere.
Contrary to the opinions of most here, I think Jones has to win some games this year... including one or two he "shouldn't" win. He has experience on the OL and at RB. He has experience and reasonably good depth on D except LB. He has no experience but does have talent at WR and QB. But if you look at the roster in total, this will be his best roster of the first 3 years considering both talent and experience. This past class was pretty critical to "early success". He needed guys that could be ready to fill big roles in '14. According to the recruiting svcs, he didn't get them. He needs a GREAT, not good, '14 class to have much of a chance of surviving.
I honestly do not believe a coach that does not have early success will survive more than 3 years at UT. IMO, he has to look like he's competing for the East at some point this fall and get a good bowl game. The next year and maybe two are going to be more difficult.
On the good side... the '13 Vols will be by far and away the most talented team he has ever coached. If he's the right guy, he could shock alot of people. If he's not... we'll know this December.