Hard to figure out. He does things that are starter-worthy, but his overall game isn't inspiring for a top-50 pick. I like how he flows to the action, his coverage drops are smooth, and he's excellent at defending routes that cross his face. Dangerous inside blitzer and fantastic at ripping the ball out after a tackle.

He's not great at shedding blockers, though. Sometimes he looks slow to read and react against the run. Nothing special as an outside rusher -- he's strictly a 4-3 weakside prospect. And while he retains the fluidity of his previous position (free safety), he stares down quarterbacks and is easily manipulated. If the quarterback starts looking at a sideline camera, Greene will abandon his man and run over there to tackle it.

His high character will help him (especially in this linebacker class, with idiots like Ogletree and Te'o) and I can see him sticking in the NFL for awhile. He doesn't look like a big play-maker, though.