ZenithOptimedia has retained the GBP15m UK media planning and buying business for Molson Coors, which owns Carling, Coors Light and Cobra beer brands. The Publicis Groupe agency defended the account it has held since 2009 against WPP’s Mindshare and IPG Mediabrands’ Initiative. Ebiquity handled the pitch. The reappointment follows a six-month global review of the business. As part of the process, WPP’s Kinetic has retained Molson Coors’ out-of-home business, an account it has serviced since 1968.