American Airlines has named MDC Partners’ CP&B and WPP's MediaCom its new global agencies after a review. The account had been with Interpublic's McCann Worldgroup and TM for more than two decades. McCann had subsidiary Martin Agency pitch the creative business. American had narrowed down its finalists to Martin Agency with UM handling media; Energy BBDO with PHD, BBH with Optimedia, and CP&B with MediaCom. The process was overseen by AAR.