From rather early in the development of the psychotherapy integration movement, there were implicit tensions between alternative understandings of the concept of psychotherapy integration and of its boundaries and aims. These tensions have been healthy and productive rather than divisive, sparking different models and different kinds of integrative efforts, but it is nonetheless important to be clear that they are tensions that persist rather than tensions that have been “resolved.” In this paper, I discuss some of the history of these competing views, some of the ways that they have been given voice, and some of the possible future directions for the psychotherapy integration movement.