I've only been involved in draft analysis for the past five years or so, but I can safely say that Tennessee's Daniel McCullers is the most fascinating defensive tackle prospect I've come across. Seriously. He's a boom-or-bust player, but that boom is Jurassic Park-like.
As you can see from his tape, McCullers is very much a "forces of nature" type of defender, using his immense size (6-foot-8, 380 pounds) and strength to clog interior run lanes and defeat blocks. Rarely will you see McCullers fail to get some sort of push against his opponents, and even when he's unable to get off blocks, the attention he draws will lead to plenty of interior gaps for linebackers to shoot. Questions about McCullers' conditioning, football I.Q. and pass-rush skill set remain, but he's an incredibly intriguing prospect for any 3-4 defense in search of a premier anchor. A two-gap nose tackle whose game is a mix of Jay Ratliff and Casey Hampton. Best part: he can improve his conditioning and shed some weight without forgoing his premier 0-technique build.