This article discusses Michigan's adoption of a mediation model in which the use of caucus is limited. This model is based on the theory that self-determination lies at the core of the mediation process and the idea that solutions are more durable when parties are given the opportunity to work together to reach an agreement. The author explains that using caucus, or separating parties, should have a purpose and sets forth fundamental principles of caucus. She then discusses the value and economy of joint sessions. The author concludes by saying that effective mediation in Michigan is dependent upon those involved making conscious decisions about the use of caucus.