No he's not a freak athlete cause he performed average at the Combine. At best he is a Solid/Good athlete. His jumps (explosiveness) were straight bad. His speed was solid as a LB, bad as a Safety, and Great as a DE. But he'd be WAAAAY too small to be a DE. And he didn't even perform the agility drills! Which I'm sure there was a reason for. The 3 cone drill would have likely been pretty telling about his ability to bend...
I mean just Look at kyle Hamilton. and you will see the difference in athleticism for guys that are basically the same size. So if James Williams is a freak, Kyle Hamilton is a super-freak? Cause he is better across the board.
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Here he is as a LB:
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Here he is as a Safety:
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And here he would be as a DE:
View attachment 306506that doesn't even need words. JW is a good kid, but he is and always was below average for his position