Eh, not really.
Imagine The Sixers offered up GRob and Todd Mac for Kidd and Mourning.
Walker and GRob both expire this year, so that cancels each other out. But here comes Philly's advantage.
Todd Mac, who will retire before the start ofthe season (he said it himself that it's a 99% probability), will come off the books in February.
By league rules, when a player retires due to injury, their salary stops counting against the cap 2 years after the injury occurred, not when they retire. Todd hasn't played a game since February 2003. So, come February 2005, he will not count against the teams cap anylonger, and insurance will pay his contract.
What does that mean? Whereas they have to stop paying Laettner's contract after this year, cheap Rattner can get Todd MacCulloch's contract off NOW, and wouldn't figure into any luxury tax calculations (although NJ appears to be under that now).
Now, I'm not saying this will happen. But Kidd to Dallas already seems like a foregone conclusion in the Media's mind. There are a lot of teams that can match an expiring contract. What it will come down to is other incentives, like a contract situation like Todd MacCulloch's, or who will include the best cheap talent/draft picks (for example, the Sixers could throw in Dalembert or Willie Green, two starters who combine to make under 2 million $).