At DDB/N.Y., director of creative services Karen Sullivan has been promoted to director of creative operations and project management. ... Director Marcus Raboy, formerly of RSA, has signed with FM Rocks for music videos and with Boondoggle for commercials representation. ... The South African directing team known as Plank -- a.k.a. Peter Pohorsky and Di Hellman -- has signed with Venice-based production company Mechanik ... Director and Britney Spears choreographer Wade J. Robson has signed with L.A.-based Blueyed Pictures for commercials representation. ... Editor Stacy Le Van, formerly of The Whitehouse/L.A., has joined Dallas edit house charlieuniformtango. ... Assistant editor Dannette Mehalik has been promoted to editor at New York's Blue Rock Editing Company.