He's going to be amazing rotational depth, at least for the first few games or unless Williams is really hurt and can't play. I'm guessing Bowles is going to work him into the rotation and he's going to cost Leger Douzable a fair amount of snaps.
I suspect the jets play a lot more 4-2-5 with Sheldon back and always have at least two of wilkerson, richardson and leonard on the field, so it probably costs Pace and Couples snaps more than douzable.