Atlanta Braves — Mark Teixeira
Trade Details: Mark Teixeira to LA Angels for Casey Kotchman and Stephen Marek
Teixeira gets the nod here because he was involved in two bad trades. First, Atlanta acquired Teixeira from Texas for Elvis Andrus, Neftali Feliz, Jarrod Saltalamacchia and Matt Harrison. Andrus went on to become a two-time All-Star, Feliz saved 72 games in 2010-11, Harrison was an All-Star in ’12, and all three players helped lead Texas to back-to-back American League pennants.
Teixeira played 157 games for the Braves and was incredibly good. The slugger hit 37 HR, drove in 134 runs, and slashed .295/.395/.548. However, Atlanta opted to trade Teixeira just one year after acquiring him. The following season, Teixeira (with the Yankees) finished second for the AL MVP.