Byung Hyun Kim
Theo made his first in-season trade as GM for the Red Sox on May 29, 2003, dealing third baseman Shea Hillenbrand to the D-Backs for Kim. BK served as both a starter and a closer for the Red Sox, going 8-5 with a 3.18 ERA the rest of the season for Boston, starting five games and saving 16. Kim pitched poorly in the ALDS and was left off the ALCS roster. After the 2003 season, Epstein signed Kim for two more years at $10 million. The sidearmer was later traded.