 " Chair Model " is the fourteenth episode of the fourth season of the American comedy television series The Office , and the show 's sixty @-@ seventh episode overall . Written by B. J. Novak , and directed by Jeffrey Blitz , the episode first aired in the United States on April 17 , 2008 on NBC . The episode guest @-@ stars Brooke Dillman and Robert R. Shafer as Bob Vance . 
