Previous researchers pointed out that the current literature on teams is in a theoretical impasse (Vallas, 2006). The existing theories of work seem to not be sufficient in explaining the complex nature of teams and the unanticipated consequences associated to current workplace transformation. In order to expand our theoretical understanding of teamwork, this paper offers an original incursion into the sociological roots of the concept of teamwork. Based on the classic works of Marx, Durkheim, Weber and Simmel, the paper shows how the understanding of teamwork can be expanded to incorporate deeper meanings and consequences related to diversity, group dynamics and social interaction in teams. As an area dominated by organizational behavioral and psychological approaches, the study of teamwork would benefit tremendously from a cross-disciplinary approach.