Publicis Groupe's ZenithOptimedia has
promoted Dave Penski to the post of U.S. CEO of Zenith, one of the two agencies
under the ZO banner. The other is Optimedia.
Penski will continue to report to Tim Jones,
North American CEO of ZenithOptimedia.Previously, Penski, who has been with the agency for more than a decade, had been president of Zenith since 2009.
