Any young prospect we trade for is always worth a look. I've made comments about Geoff resurrecting or establishing careers out of forgotten and/or unheralded players, and while that can potentially ring true with Williams, I have already developed a lot of complaints about him:
His gameface alone probably suggests that he's a role player all the way. The question is whether he's an impact role player, a glue guy who can bring the intangibles, defense and rebounding to our team, or whether he's going to be another great college player-bad pros player sort of failure. I've likened him somewhat to Kurt Thomas, not in offensive game but in physique--pretty strong, somewhat undersized, not an intimidator but a solid post defender. He's obviously young, but to me he's not so much a young prospect as he is more of "an older" player--just rubs me off that way, considering he's had 4 years of experience at Duke and he has what I consider a limited ceiling.
There are already some concerns during his rookie year--namely his shotblocking. Great shotblocker at Duke, but at 6'9", despite his freak wingspan he's probably not going to be the intimidator he was at the college level. He's pretty robust and somewhat mechanical, stiff shoulders type, offensively and defensively. Can score around the basket and has a semi post game, which he will probably develop in due time; already an amazingly good free throw shooter (76% rookie year). Definitely not the jumping jack Justin Williams was, so probably won't be the shotblocker/rebounding machine Williams was either--but probably will still get a fair share of rebounds thanks to his smarts and overall toughness as opposed to athleticism. Another concern is his foul prone-ness, which may hinder him somewhat but shall probably be corrected eventually.
The Hawks are built off athletes, first and foremost, with Marvin Williams, Childress, Josh Smith and Horford leading the fray, so to me it's somewhat clear they'd want to shift the non-high-tempo Williams out. He probably won't address our need for shotblocker/intimidator despite his billing out of college, because of height limitations, but he should provide another source of solid defense, hopefully a younger Kurt Thomas at best.