Some more writeups on some Day 2 DTs I watched.
Raekwon Davis
Huge (6'7 317 I believe?) and strong, and he moves well for his size. There's some DeForest Buckner/Arik Armstead to him. Run defense is outstanding. He knows how to lock out his arms and control linemen. If you were running an old-school 3-4, he is just about the perfect two-gapping 5 tech.
But in a league that throws 2/3rds of the time, the question is how good of a pass rusher he's going to be. He doesn't seem that explosive. The virtually identically-sized Javon Kinlaw will sometimes just forklift linemen off their feet with speed, length and power, but Davis doesn't really blow guys up like that, he's more of a stack-and-shed guy.
So he's sort of a square peg in a modern NFL defense. Not fast enough to edge rush, not as explosive as you'd like as an interior gap shooter, maybe he can play some nose but you'd like your NT to be a little lower to the ground than 6'7". Wherever he lines up, he is primarily a run defender.
The major problem with him though IMO is his head. His play has regressed for three straight years at Bama - there was future top-5 pick hype with him after his sophomore year, he probably would have went late first if he declared as a junior last year, and he's a Day 2 guy this year. Bama usually coaches the hell out of their players and most of their early round guys come into the pros with military-grade technique, but Davis doesn't have that. The only conclusion I can draw is that he doesn't take coaching, because good technique has just been such a constant with Bama players and you know he's been receiving their attention with 3 years as a star player.
There's also the slew of off field problems with him. He shot himself at a bar. He punched an offensive lineman during a game while the linemen was face-down on the ground (cheap shots). He was academically ineligible as a freshman. He got caught with weed. Any one of those wouldn't be a big deal, but together it paints a picture of a guy who doesn't make the smartest decisions and really doesn't give a s**t.
Laziness and off-field issues make him pretty close to DND for me. He's probably a second-round prospect because of his physical upside and 3 years of production, but I don't think he is going to get better after a steady college regression and he just looks like a problem waiting to happen.
Neville Gallimore
Another huge and freaky-athletic tackle. Bruce Feldman put him at #2 on his always-entertaining Freaks List, with Oklahoma claiming he can squat 800 and runs a 4.7 40 at 305. He also had the highest pass rush win rate of any DT in the Big 12 per PFF.
His lower body is just like a block, and he is FAST for his size. Not necessarily quick-twitch explosive, but you rarely see guys with NT size chase down plays and stunt as well as he does. He plays hard and you regularly see him getting in on plays downfield that he should have no business in.
Gallimore's technique is really raw through, as he has a habit of playing standing up and doesn't really have any moves. For a guy who squats 800, down-blocks sure wash him out easily, because he plays with no leverage. That can be coached, but the more worrying part to me is that he's almost too rocked-up and not very flexible. You don't see him get skinny and slip through gaps.
Despite his size, he looks like a 3 tech to me. 1T potential is there with his build and strength, but he's going to take some work first. Likewise, 3T isn't a sure bet either because he's not actually that good of a penetrator - he's the type that wants to go through you rather than by you.
The raw tools are freaky, and given how hard he plays, I think he'll keep working to fix his technical flaws. So there's a ton of upside with him, but also a lot of risk, and I don't think he's going to be a guy who's ready for a big role in year 1 either.
He's probably a 2nd round talent and a real ceiling-or-floor kind of pick, but I'm willing to bet on him for the same reason I'm not willing to bet on Davis.