Yeah, they could trade him. But they aren't going to trade him to anyone who could challenge them. They are going to want to trade him out of the division, and likely out of the NFC. That reduces the number of teams dramatically. Still, they could trade him for a decent player. But who is going to offer anything decent in return when you know that Brett doesn't have many options? Brett could have returned with the Packers in the spring. It sounded as if it was pretty certain that Brett was going to come back. They have a great team. Now everyone is going to hate him for starting this mess up. I hope he either goes to the Bears (which won't happen) or he officially retires.