because the cubs are the ones already holding the risk. other teams have the option of taking on that risk at $10M per year for 2 years, or leaving it. they'd be wise to leave it since he's often injured and often an a-hole. the cubs would be wise to keep him because he does give fairly good production when he plays, even this year, and if you trade him you're going to have to eat some money and get basically nothing in return, then either sign another expensive guy (which isn't likely to happen) or do your trade idea. and unless you really find a gem, you're not going to take a dump in a box and get an affordable corner outfielder with bradley-like production in return.