Al Thornton anyone? Last I remember he was getting waived, not sure if he's landed anywhere yet. He could be a perfect tweener fit for Green, although a downgrade. Or Outlaw, but I think he's going to the Knicks.
Otherwise, we could go with JJJ in our small-ball lineup. He can run the floor and spread the floor with his range. He can't guard 3s, but he won't need to if he's playing the 4 with KG at the 5. I actually like this idea, and it's a way to get him on the floor. It also means we don't have to focus on getting a true tweener to replace Jeff.