I don't at all buy OP's claim that Arkansas will be one of our easiest games this year. But, I also think that people are overrating them a bit. Keith is right that their losses will severely affect their defense. And, Keith is right that the most important aspect of their team (or, most impressive) was their defense. But, they still have a very good team, and one that can make some noise in the SEC. However, what is being overlooked is that their running game is less dominating than many give them credit for.
Williams and Collins both ran for over 1,000 yards, but that seemed to be more a product of them staying healthy and their team being focused on the running game. Neither had particularly impressive years. Here are all of the SEC running backs who had at 150 carries and had more, as many, or close to as many, YPC as Collins and Williams:
Chubb: 7.06
J. Robinson: 6.33
Derrick Henry: 5.76
Jonathon Williams: 5.64
Leonard Fournette: 5.53
Alex Collins: 5.39
Cam. Artis-Payne: 5.31
R. Hansbrough: 5.29
M. Murphy: 5.22
N. Marshall: 5.22
They were very good, but only a bit above average in YPC for the SEC. They are your average "very good, but not outstanding" SEC starting RBs.
Moreover, both got a large chunk of their yards against three of the worst run defenses in football.
Williams had 5.6 YPC and 1190 yards. But take away Texas Tech (124th/128 in FBS on run defense), Nicholls State, and UAB, and he had 4.4 YPC and 748 rushing yards. That massive change occurs simply by removing three games.
Collins has 1100 yards and 5.4 per carry. But he had 410 of those against Texas Tech, Nicholls State, and UAB. Without those three games he ran for 4.5 per carry and 670 yards.
Both of their backs were solid-to-good against SEC caliber teams, and fantastic against garbage teams. Against our run defense, I would be surprised to see them average 4.4/4.5 per carry. Hardly a dominating tandem, though they are very good, to be sure.
Not to forget, even with this tandem, Arkansas was 5th in the SEC in rushing yards per game, and 5th in rushing YPC.
Add in a solid though not outstanding QB who is no threat to run and whom we can pin our ears back against on passing downs, add in the fact that they lost a decent bit of their defense, and add in that it is in Knoxville and I am pretty confident that we win this game.
Moreover...mentioning the Alabama game plays into the claims made by Keith. They kept it close by being dominant on defense. They only ran for 2.3 YPC, and Allen had a solid, but not very good, day throwing the football. We put up a significantly better offensive performance against Alabama. If their defense truly drops off as much as their losses indicate it could, then they are losing their best attribute, and the part of their team that let them hang with, and beat, the big dogs.
Reminder: I think that Arkansas is a very good team, and will likely be in the top 30-35 range at the end of the season. I just don't think, however, that they will be playing with teams like Auburn or Alabama, and that they will likely finish in the 4-5 range in the SEC West. They will be a tough game, but, barring injury, I think that we have a very good shot at pulling out the win.