At Cole & Weber/Red Cell, managing director Brad Harrington has been promoted to co-president alongside current president Mike Doherty. Harrington joined Cole & Weber -- which has offices in Seattle and Portland -- in 1996, when he launched the agency's interactive department. ... Director David Jellison, formerly with Cohn & Company, has signed with Santa Monica production house Thomas Winter Cooke for commercials representation. ... Director Liz Hinlein, formerly of Believe Media, has signed with New York's Free Market Films for U.S. representation. ... L.A. music house Stimmüng and New York's RMI have merged under the Stimmüng banner. RMI will be rebranded as RMI Stimmüng.