CHICAGO -- The Cubs promoted Shiraz Rehman to assistant general manager, reporting to general manager Jed Hoyer, on Thursday.

The team now will have two assistant GMs in Rehman and Randy Bush, who will continue to serve in the role he has held since December 2006.

Rehman, 34, joined the Cubs in November as assistant to the general manager after six seasons with the Diamondbacks, where he was director of player personnel. He also held the titles of director of baseball operations (2009-10) and manager of baseball operations (2007-08) after joining the D-backs as a baseball operations assistant in December 2005.