Well the thing is that since Brand has opted out, he has a lot of leverage in this situation.
He might want to go back to the Clippers, but he's going to listen to all the offers, then he's going to go back to LA and say, listen this is what I've been offered, can you at least match it?
If the Clippers match, they get a very nice core of Brand + Baron DAvis.
If they don't, Brand might be wearing a new uniform next year.
But somehow there not allowed to match. They lost their Bird Rights when they signed Baron Davis. What Brand can do is say "hey I'm willing to take less to stay here, but move a contract or two so that I can make a little more." The problem then is that if they move players they become less competitive.
That's not 100% accurate. The Clippers haven't lost their Bird rights.
The problem is, they can't sign Davis until they clear up enough cap room to do so. Both Corey Maggette and Elton Brand have a "cap hold" on their contracts, that is actually for a greater amount than their previous contracts. This eats up their cap space.
There are three ways to release a cap hold: 1) if the player signs with a new team, 2) if you renounce the player, or 3) if you sign him.
The Clippers are renouncing Maggette, and are hoping to sign Brand. When they do so, they'll sign him for a lesser salary than his cap hold. This, in turn, will free up cap space, so they can sign Davis.
The Clippers still would have Bird rights, meaning they'd be able to sign Brand for as much as they wanted (up to the max salary). However, if they did so, they wouldn't be able to sign Davis.