Results from a longitudinal study of Australian business academics are used to examine the impact of government policy and institutional change on engagement in interdisciplinary teaching and research. Management education is a multidisciplinary field where, despite continual pleas for greater interdisciplinarity in teaching and research from scholars and practitioners alike, the attainment of interdisciplinarity remains elusive. While disciplinary identity is a common barrier to interdisciplinarity, the nature and culture of graduate business schools were potentially able to overcome this barrier until the introduction of a national research measurement policy along with subsequent institutional restructuring revived disciplinary silos.