The Cubs have promoted Shiraz Rehman to assistant general manager.
The 34-year-old Rehman joined Chicago last November as assistant to the general manager after spending six seasons in the Arizona Diamondbacks' front office. He also worked under Cubs president of baseball operations Theo Epstein and general manager Jed Hoyer as an intern in the Boston Red Sox's baseball operations department in 2005.
Chicago now has two assistant general managers, with Randy Bush continuing to serve in a role he has held since December 2006. The Cubs announced the move on Thursday.