 The episode received generally good reviews from critics . Brian Zoromski , of IGN , stated that " ' Business School ' was an exercise in what works best in an Office episode . " Zoromski also praised Joss Whedon 's directorial debut for the show , stating that " Whedon 's direction and sense of humor was both <unk> put to use and alluded to in the scenes in which Jim <unk> pretended to become a vampire . " Zoromski went on to say that the acting of John Krasinski and Rashida Jones , who portrays Karen <unk> , helped to make the vampire scenes the funniest parts of the episode . He gave the episode a 9 @.@ 1 out of 10 . Abby West , of Entertainment Weekly , stated that " This show has always been able to turn on a <unk> and take the comedy to a soul @-@ stirring dramatic climax with just the lightest of touches , and last night was no different . " West went on to praise Michael and Pam 's scene at the art show as one of these moments . 
