Euro RSCG Worldwide has hired Andy Mueller, formerly of Conductor, as director of business development. ... Salt Lake City's Struck Design and W Communications have merged to form the new creative shop STRUCK, and named Steve Driggs, formerly of Fallon Worldwide/Minneapolis, partner and executive creative director. ... Partners + Napier hired Dan Goldgeier, a columnist for Talent Zoo and a contributing writer to AdPulp.com, as a copywriter. ... Director Peter Harton has signed with The Joneses for exclusive representation in the U.S. ... Music/sound design firm Ear Goo has named Jon Tropea Jr. creative director. ... Taras Wayner, formerly of Berlin Cameron United, has joined R/GA as executive creative director. ... The Grid Institute has appointed veteran visual effects artist Jeff Kleiser a fellowship to participate in the design and development of Media Grid rendering and digital cinema standards. ... Digital Kitchen has added Kent Smith, formerly of Sideshow Entertainment, as executive producer. ... Mother/New York has added a half dozen new faces including creative Bill Moulton, formerly of BBH, strategist David Fuller, formerly of Brownstein Group, creative manager Stephanie Rand, formerly of Wert and Company, "mother" Christopher Pieretti, formerly of re:vision, creative Piers North, formerly of Mother/London, and creative Peter Karras.