MUMBAI: GroupM, WPP's pooled media buying business, has promoted its CFO Rupert Day to global COO.

Aside from his role as operational head of GroupM - which incorporates MindShare, Maxus, Mediaedge:cia and MediaCom - Day's remit is to develop new business opportunities, acquisitions and joint ventures worldwide.

"Rupert has been the de-facto COO of GroupM for quite some time now while also carrying the heavy responsibilities of chief financial officer," GroupM CEO Irwin Gotlieb was quoted as saying in a statement. "But it's simply too much of a load for one person. This move recognizes the great work he's been doing for us, as well the need for a deeper management structure at GroupM."

Day, who is based in New York, was named GroupM CFO in 2003 and has worked for more than 10 years at different WPP companies in Europe, Asia Pacific and North America. Day was part of the original management team that launched MindShare globally.

The announcement of Day's promotion comes alongside the elevation of MindShare North America president and CEO Marc Goldstein to GroupM North America chief executive. Goldstein will share management responsibilities for the parent unit with current GroupM chief investment officer Rino Scanzoni.