The episode received generally good reviews from critics . Brian Zoromski , of IGN , stated that " ' Business School ' was an exercise in what work 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 excellently put to use and alluded to in the scenes in which Jim hilariously pretended to become a vampire . " Zoromski went on to say that the acting of John Krasinski and Rashida Jones , who portray Karen Filippelli , 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 have always been able to turn on a dime 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 .