Evaluation of new patient care delivery models often focuses on their impact on the role of the staff nurse and the introduction of a variety of assistive personnel. This article examines the effects of patient-centered care models on the roles of nurse and non-nurse managers. Interviews with 26 managers approximately 6 months after models have been implemented reveal a number of issues and challenges faced by the managers during and after implementation. The data provide a number of new insights not previously reported in the literature.