While Posey’s agent, Mark Bartelstein, wouldn’t say which teams were interested in his client, he did say they were contenders. Among those also expected to be wooing the Cleveland native are the Cavaliers, Wizards, Hornets, Spurs, and Lakers. “We’re just working through this thing,” said Bartelstein yesterday. “Free agency is just a moving roller coaster. He’d like to get something done,