By the way- Brooklyn may not be as desperate as you think to move those three contracts. Sure, they are fishing, but this is a lost season for them. They are fishing precisely because someone might be needy enough to give them something actually good.
When the cap goes up, free agents start demanding more, and more teams have some space to fit these contracts, we might actually see the trade value on the Lopez, Johnson, and Williams contracts go back into the black. In the meantime, the Nets mostly need to sit tight and try to get those guys healthy.