Joining the agency's digital and traditional marketing divisions, Ogilvy/N.Y. has named OgilvyInteractive ECD Jan Leth as chief creative officer. In joining CCOs David Apicella and Chris Wall in the agency's creative leadership, Ogilvy hopes to facilitate cross-discipline collaboration. ... Anonymous Content in L.A. has signed Justion Reardon for exclusive U.S. commercial representation. ... Toronto editing company Relish has added editor Marcus Valentin, formerly of School and Stealing Time.