Damian Stevens, formerly executive producer at production company JGF, has joined Saatchi & Saatchi/L.A. as director of broadcast production. ... Editors Ed Kisberg and Geno Tulchin, both formerly of The Refinery, have announced the launch of New York boutique Rooftop Edit. The shop's staff also includes Smoke artist Anthony Forte and assistant editor Jeremy Ambers -- both formerly of New Jersey's Fort Productions -- and mixer/sound designer Chris Russomanno, formerly of Planet V. ... Visual effects artist Andy Milkis, most recently of Broadway Video, has joined New York's Blue Rock as managing director and creative director of Tranquility Base, the company's new visual effects and design satellite. Glen Carey, formerly an assistant producer and copywriter at McCann-Erickson, also joins the operation as a producer and sales rep.