Who else could the Cavilers sign?

They could bring in someone cheap to replace him like Richard Jefferson, but I dont know who else they could sign since they dont have much money. Maybe they could swing a trade for Caron Butler, since he is a good player, could be an adequate replacement if Lebron leaves, and has an expiring deal. Maybe trade Jamison and Delonte West or Anthony Parker to Dallas. Also, JA Adande said Cleveland could target Anthony Randolph in a trade with the Warriors.