I'd be wary of squaredancing with Billy Beane. Solid lock that Chapman would probably crater for us while whatever prospects we gave up would go on to play key roles for the A's moving forward, maybe even turn into superstars.
If you want to figure out what pieces we have that are valuable, have Beane come in and take a look and see what he asks for. Probably a good idea to hold onto those guys.
Tongue in cheek aside, it would depend on what we'd have to give up. Chapman's defense is still really good, even if we're debating if his bat has slipped or not. I wouldn't be totally opposed, especially if there's a chance we could extend him. At 10-12 million a year, it wouldn't be too cost prohibitive for anything else the franchise might want to do.