He just looks like that in college games because he was only 260. He put on 15 pounds after the senior bowl so that no-one thought of him as a stand up linebacker. He's 278 now, has a good big frame with which to put the pounds on also.
I love this pick. Roth will be a great high energy substitution for our suddenly VERY DEEP DE corps. With Roth coming off the bench we should have nonstop pressure on opposing O-lines-- something that we lacked at too often this past season. Saban may have visions of Roth playing up at either OLB spot when he uses the 3-4 scheme as a change of pace. Either way this guy is a baller and I am ecstatic to have him in aqua and orange.