My guess is he needs to improve flexibility during his redshirt and upcoming off-season. If not I can see him moving to a more specific package role or change position completely. I'm a big fan of Dismuke from a raw athletic talent standpoint.
The most recent player he reminds me of is Eric Hagg. Came in raw, didn't really fit a traditional position he can excel at but worked his tail off and ended up being a key component on our defense. Saying key component doesn't even justify how important he was for us as I truly believe he's one of the most undervalued Husker players, from a fans standpoint, in a long time.
The two are very similar from a physical standpoint.