Kansas City Royals ⇄ Miami Marlins

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

Gorkys Hernández changed clubs, and none of them amounted to much for either side.

Cash considerations is the whole of what changed hands besides Ross Gload.

Miami Marlins came out ahead by 2.2 WAR, most of it from Juan Carlos Oviedo.

Abraham Núñez and Rudy Seánez changed clubs, and neither amounted to much for either side.

Todd Dunwoody changed clubs, and none of them amounted to much for either side.

Jeff Conine changed clubs, and none of them amounted to much for either side.

Matt Treanor stayed 5 seasons and was the best of it, and it still came out close to even.