Taxi in New York has hired five employees, effective last week, bringing its staff up to 17, according to Paul Lavoie, chairman and chief creative officer. The new staffers include three creatives: art directors Paul Caiozzo, 28, and Brandon Mugar, 27, and copywriter Nathan Frank, 27. Caiozzo had been an art director at Cliff Freeman and Partners in New York; Mugar worked on Adidas at TBWA\Chiat\Day in San Francisco; and Frank joins from Bartle Bogle Hegarty in New York. "We're looking for creative people who are braver, more open-minded and ready to switch canvases," Lavoie says. "We selected a crew of people who meet those qualifications." The other additions include Sharon Slaughter, 33, from Martha Stewart Weddings, as senior designer, and Ed Burgoyne, 35, as print production manager. They will work on Amp'd Mobile and CSTV Networks Inc., as well as several undisclosed projects.