The Cubs and Marlins made an excellent trade, swapping first basemen Hee Seop Choi and Derrek Lee. Lee will bring some much needed OBA to the Cubs lineup, and I suspect Wrigley will help his power numbers. In return, the Marlins are getting a younger first basemen who has had great minor league numbers but has struggled at the major league level. He was having a decent season until a head on collision put him out of action for a while. The Marlins are saving some money, and Choi has a decent chance of being as good as Lee with the bat.