For what it's worth, here is an opinion about Omar Williams from Mark Mayemura who ranks the incoming freshman on ESPN.com.
I like Omar, I kind of liken him to a European wingman... he's what?? 6'8???
and can handle and shoot the ball. On the downside, I also hear that he's
considerably older (20 ???) than most high school players and that academics
will be a concern.
If he can get his academics together, he could be a key in changing the
recent direction of the program.
Given his age and academic reputation, I'd say you should hold off on any
NBA talk until he's proven himself at GW.
He's got the talent to be a 2-3 year starter, but he also needs to prove
himself... heard he wasn't much of a student for most of his high school
career and that he's got some of that streetballer mentality (may not care
much for school, didn't attend school very much, just play on the streets
for hours on end)... I don't know if that is fact, but that seems to be the
word on him. And he's like in his 5th or 6th or possibly 7th year of high
school... that's more of the talk/rumor about him. Don't despair, Eddie
Cota of UNC was in high school for something like 6-7 years.
Having said all this, I guess what I mean to say is that he has talent (good
size for the wing too), but that he needs to show some stability off the
court.
P.S.--- He needs to really gain some weight/muscle. He was really thin,
wiry this summer. He'll get pushed around at the net level unless he can
put some time in at the weightroom and improve his diet.
He's got a chance to be good at GW, but he's also got a chance to be a major
underachiever. Appears to have some baggage, which might be a concern.
Hope that gives you some insight. Maybe I was too candid. But, best of
luck to GW fans, I know you've had some hard down times recently.