Not too many humans look like Terrell Lewis. Freakish length and athletism like that doesn't come around very often. Based purely on his physical tools he should have a pro bowl career in the NFL.
I place huge emphasis on physical tools when it comes to defensive lineman (in particular edge rushers). This is a major reason I was never swayed by Derek Barnett's statistical prowess vis-a-vis his lack of elite physical tools.
Intangibles are the difference between pro bowlers and great college players. Physical tools don't mean anything if the player doesn't have IT. I'm willing to bet Barnett becomes a far better NFL player than Garrett could dream of becoming. Garret has all the tools but was too lazy and whined too much in college. He padded his stats against garbage teams and played(faked) hurt against real competition.
Seriously if physical tools meant anything ever person over 6'6" and weighed at least 200lbs would have solid NBA careers