Even though they've spent tens of millions of dollars on it over six years; even though they've run it in print, broadcast and digital media in more than 200 markets worldwide; and even though they went so far as to record a single of its theme song , it appears that Coca-Cola's no longer happy with its "Open Happiness" ad campaign. "The brand has asked 10 roster agencies to pitch ideas for Coke's next global campaign: Wieden+Kennedy in Portland, Ore.; David; Dentsu; FCB in South Africa; Martin Mercado; McCann in Madrid; Ogilvy; Santo; Sra Rushmore; and The Cyranos," Adweek reported March 23. Maybe it's because their new chief marketing officer, Marcos de Quinto, had a case of the New Broom Syndrome.