They are "trying to get rid of Manny" because Manny has asked to be traded out of Boston, again. He's asked about 4 times now. It's not just a matter of a guy having a bit of an attitude, it's a case of the guy not wanting to be on the team. To be fair to Manny, he's been a good sport about it the last few years. As long as they make an attempt in good faith to trade him, he works hard for them. That's debatable.