WTFS receives a $6 Melky Cabrera
Foundation receives a $5 Didi Gregorious
This trade is as pretty close to even as you can get. Both are solid regulars who you’d expect to average between 4.5 and 5.5 points per game. The main difference here is one plays a much more scarce position. With Jordan losing Jean Segura to the DL, he is probably going to benefit more in this trade than Keith will, and that’s not to say Keith did anything bad here.
I think being able to cycle through the OFs Jordan has (Harper, Thames, Calhoun, Granderson, etc), it was more valuable for him to get to turn an expendable. Melky into a sure fire play every day SS for him. Hopefully Torres’ eventual call up doesn’t limit Didi’s playing time, but even if it does, it was a risk worth taking.
Keith has Hernan Perez and Elvis Andrus to man SS, so trading his depth there will allow him to fill holes in his outfield. Plus, if Keith decides to keep Buxton again, he can keep a very cheap outfielder in Melky to partially make up for that mistake.
Breaking down the math
2018: $40 Buxton- Not ideal
2018: $48 Buxton and Melky- Less not ideal