Athletics ⇄ Kansas City Royals

Mitch Spence changed clubs, and none of them amounted to much for either side.

Kansas City Royals came out ahead by 2.2 WAR, most of it from Lucas Erceg.

Jake Diekman changed clubs, and none of them amounted to much for either side.

Close to a wash — the margin never reached a full win.

4 pieces changed hands and the ledger barely moved.

Billy Burns and Brett Eibner changed clubs, and neither amounted to much for either side.

Athletics came out ahead by 10.2 WAR, most of it from Sean Manaea.

Kila Ka'aihue changed clubs, and none of them amounted to much for either side.

Close to a wash — the margin never reached a full win.

Jeremy Giambi stayed 3 seasons and was the best of it, and it still came out close to even.

Blake Stein stayed 4 seasons and was the best of it, and it still came out close to even.

Cash considerations is the whole of what changed hands besides Jay Witasick.

Mike Macfarlane, Shane Mack and Greg Hansell changed clubs, and none of them amounted to much for either side.

Mark Williams changed clubs, and none of them amounted to much for either side.