Joshua Casey says:

If the Lakers traded for Iguodala, and then shed some cap room off the bench and re-worked a few deals, they would then have the cap room to offer Williams more than just a mid-level exception or a low paying contract. Including this season, and the next two, Gasol will be paid 57,000,000 by the Lakers. On the other hand Iguodala will be making 44,154,750. It saves the Lakers a lot of money and gives them a little flexibility where they could offer D-Will a pretty good contract. Now this is all based off the fact that D-Will wants to play for the Lakers over the Nets and Mavericks. He has said he would like to play for the Lakers but he has not said if he would take a pay cut to do it. Without Howard in Brooklyn, and a not so good team in Dallas, it does seem that the Lakers would be his best chance to win. He would immediately upgrade the Lakers back-court and give them the extra scoring boost they need.