It's not that we are theonly team with expiring contracts. It's that our contracts are expendable. The problem with trading Z is that it would hurt cle too much. Plus, they've seen how effective the lineup of Z and Shaquille is against LA so they would never do it.
Have you watched CLev play lately?
Z is not a huge part of their team now that shaq is there. They have been rumored to be trying to move him for months. In fact, one of the most solid rumors has him outbound for antwain Jameison.
One game where it worked against LA is not going to change the fact that it is almost imposable for them to play Z and shaq on the floor at the same time efficiently. It affectively turns any long rebound into a 5 on 3 break for the other team.
The simple fact is that we vastly overestimate other teams desire to trade for our spare parts. If teams were really chomping at the bit to do it, as trade threads have claimed all season, they would have made a move for an impact player by now with the expiring s.
I have no doubt we could trade out expirings for something, but not for the pie in the sky scenario's that persistently pop up.