Until Joey can learn to hit with his "hair on fire" load, or he can calm it down a bit to produce more contact, I don't think this should be a consideration. I think others have said it in the Chourio thread, but start with Chourio, Mitchell and Frelick in the outfield, Yeli at 1B or DH, maybe platoon TT against lefties and see if Wiemer can make some progress in the minors. No reason to sell low on a kid that is dirt cheap and has the chance to improve.
If he figures it out and we have 4 legit GG OFs, look to trade one at that point. They'll be worth more anyway once they've proven more.