RETURN: RHP Aaron Kurcz, RHP Chris Carpenter
While it took Epstein less than a month to latch on with the Cubs, it took much longer to figure out the compensation that the Red Sox would get for him. Kurcz, an 11th-round pick in 2010, spent his 2012 season with Double A Portland and was an Eastern League All-Star. Carpenter was ranked the 13th-best prospect in the Cubs system by Baseball America heading into 2012. After a DL stint to start the season, Carpenter worked his way to Boston, making seven relief appearances, posting a 1.59 ERA over 5 2/3 innings, while flashing a high-90s fastball.