GroupM's Wavemaker has named Dennis Potgraven
Chief Strategy Officer U.S.
Potgraven, who joins from Havas Group, where he held the same title for Greater China.
As part of Wavemaker's U.S. executive committee team, Potgraven will
be responsible for overseeing the agency's "provocative planning" system.
He reports to U.S. CEO Amanda Richman.