Leonie Röcker demonstrates that effective management of leaders at the intersection of marketing and sales positively influences the success of both departments and their collaboration. The author examines, through two empirical studies, how companies can effectively select and manage their leaders in marketing and sales. Based on this, she derives practical recommendations. The Institute for Market-Oriented Management (IMU) was newly established at the University of Mannheim in 1999. It serves as a platform for application-oriented research as well as a forum for dialogue between science and practice. The aim of this series of publications is to disseminate scientific findings that are relevant to market-oriented management.