Ray for Iguodala would be a good deal. We'd miss Ray's shooting, but AI's defense and athleticism would make up for it. It would be better to take on Dalembert's contract because it is 2 years shorter then Brand's. That contract could be flipped next year if need be.
Here's a good deal, IMHO
Tony Allen
Ray Allen
for
Andre Iguodala
Samuel Dalembert
Rodney Carney (deal can be done without him)