NEW YORK: GM Planworks, a division of the Starcom MediaVest group dedicated to General Motors, has reshuffled its management suite and appointed an executive to oversee buying across all media channels.

Mike Rosen is to move to the role of president, responsible for investment and activation. Meanwhile, his colleague, Mary Carpenter, will take the title of president, strategy and operations from her present position as vp-chief strategy officer.

The new roles mark the start of a broader initiative to restructure and expand the agency's media strategy, investment and research services.

Rosen is tasked with establishing teams with expertise across variety of media and specific content areas, such as sports and multicultural marketing. Carpenter, meanwhile, will oversee all planning activity across the US-headquartered automaker's divisions.

Comments Planworks ceo Dennis Donlin: "Together, the two executives will be empowered to align their wide array of agency resources across all clients and media types, leveraging those resources in the marketplace for the benefit of General Motors."

According to TNS Media Intelligence GM spent $3 billion (€2.34bn; £1.57bn) in measured media during 2005, of which £110 million was spent online.

Data sourced from AdWeek (USA); additional content by WARC staff