The Chicago Cubs named Shiraz Rehman assistant to the general manager on Monday. The 34-year-old Rehman will report to GM Jed Hoyer. He joins the Northsiders after six seasons with the Arizona Diamondbacks, most recently as the director of player personnel. Rehman will assist the general manager on potential player acquisitions and will also assist in providing scouting, financial and statistical information to support trade and player evaluation.