Editor Jon Stefansson, most recently of Cosmo Street in New York, has joined FilmCore New York's roster. ... Bicoastal Moo Management has added photographer Michael Baumgarten to its roster. ... A Band Apart has signed Deoborah Herbert and her agency Y-i to represent its directors for music video work in the U.K. ... AKQA in San Francisco has named Gary Krivin, formerly of R/GA, as director of client services. ... Colle + McVoy in Minneapolis has added four creatives to its team. Colin Corcoran, a copywriter, joins from Minneapolis agency Hunt Adkins; Elizabeth Kallstrom, an art director, joins from Miami Ad School; copywriter John Neerland arrives from Olson + Company in Minneapolis; art director Nina Orezzoli most recently worked at The Foley Group, aslo in Minneapolis.