Having seen quite a bit of him at Arkansas, I'd say it's accurate to call him shifty.
In fact, I thought that was one of the main things he had over McFadden. McFadden was one cut and go, while Jones was always a moving target, setting up his blocks and cutting off them. He does a good job with the shoulder dip and selling his cuts with his body language. He has quick feet and good balance to bounce in and out of cuts, stringing several together.
If a hole is there, he knows how to hit it and go, which is what you see on the highlight films, but when it is not there, he can weave and bob to find yards.