NEW YORK (Standard&Poor's) March 9, 2010--Standard&Poor's Ratings Services said today that its ratings on GMAC Inc. (B/Stable/C) and its subsidiaries are not affected by the company's announcement that its CFO, Robert S. Hull, will be leaving the company at the end of this month. GMAC faces many challenges, including resolving strategic considerations for several business lines, most notably the mortgage operation; executing its plans to diversify beyond providing auto-finance products and services to GM and Chrysler dealers and retail customers; and coping with a still-fragile economy. Management continuity would help the company address these issues, but considering the challenges, it is not surprising to see turnover at all levels of the institution.