The Interdisciplinary Generalist Curriculum (IGC) Project significantly adv
anced collaboration in the development of medical school curricula. As prim
ary care faculty began to work together they encountered and overcame many
challenges inherent in this new process. Inclusion of other faculty and dep
artments, as well as dedicated support from the deans' offices, became nece
ssary to the success of the projects. The continuation of successful collab
orative projects in the medical school environment requires a common commit
ment of faculty, students, department chairs, and the dean's office; protec
ted time; and involvement of faculty from other disciplines. This article o
utlines initial models of collaboration implemented in the IGC Project, fol
lowed by a description of the expected and unexpected outcomes of these col
laborative efforts, and a discussion of the emergence of new ways of collab
orating, with recommendations for successful collaborative efforts.