and tfie anonymous reviewers at Administrative Science Quarteriy for their support and comments. This article focuses on the activities teams use to manage their organizational environment beyond their teams. We used semistructured interviews with 38 new-product team managers in high-technotogy companies, log data from two of these teams, and questionnaires completed by members of a different set of AB new-product teams to generate and test hypotheses about teams' external activities. Results indicate that teams engage in vertical communications aimed at molding the views of top management, horizontal communication aimed at coordinating work and obtaining feedback, and horizontal communication aimed at general scanning of the technical and market environment. Organizational teams appear to develop distinct strategies toward their environment: some specialize in particular external activities, some remain isolated from the extemal environment, and others engage in multiple external activities. The paper shows that the type of external communication teams engage in, not just the amount, determines performance. Over time, teams following a comprehensive strategy enter positive cycles of external activity, internal processes, and performance that enable long-term team success.*