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This one would have to wait until after the draft, when free agency started, so the Sixers could involve Williams in the sign-and-trade.
Since neither side would be swapping draft picks, a pre- or post-draft trade is inconsequential.
The Sixers realistically can't afford to re-sign Williams, a restricted free agent this summer, if they hope to build a championship contender.
They'll ideally look to spend less on a backup point guard this summer, despite Williams having led the team in scoring this past season.
Enter Steve Blake. He won't create his shot like Williams, but he's been a much better three-point shooter than Williams over the course of his career.
And really, no matter Blake's limitations on the defensive end, he can't be that much worse than Williams, can he?
Meanwhile, the Sixers desperately need a scoring presence down low, no matter whether or not they amnesty Elton Brand this summer.
In a "down season" this past year, Gasol averaged 17 points and 10 rebounds despite being the third focal point on offense for the Lakers. Add in Gasol's passing ability—a must-have for a Doug Collins-coached big man—and you have one of the main ingredients the Sixers lacked this past season.
For the Lakers, the backcourt pair of Iguodala and Kobe Bryant could become a nightmare for opponents on both ends of the court. Iggy would give the Lakers one of the premier wing stoppers in the league—aka, Ron Artest, pre-Metta World Peace days—and proved in this year's playoffs that he's capable of knocking down some clutch shots, too.
A "Big Three" of Bryant, Iguodala and Andrew Bynum would give the Lakers one of the most talented trios in the league, and helps further pave a vision for a post-Bryant Lakers.
The replacement of Blake with Williams in a sign-and-trade would give the Lakers some desperately needed scoring off the bench.