I think y'all are spot on and this guy is exactly what we have been missing. A plug in the middle and a guy that won't get driven back by the bigger O-lines. Granted the past few years we have been getting better at stopping the 4th and 1 and goal-line stances.
This guy will allow our athletic D-ends and LB/s to really get at the QB as well as let someone like Barrington who isn't a huge LB but moves very well to play the middle and fill the gaps. He won't get the stats but will take up two OL every time and keep his ground. At least that's what I'm hoping he will be able to do. Sam only has one year left and needs to be able to roam, if so he's lights out.