This book assesses the management and performance of networks in light of the rising popularity of collaborative approaches in public service delivery. It does so by examining the case of smoking-prevention networks in Switzerland. The book considers how network managers can be distinguished based on work-context related factors, and analyses how the interaction of these factors leads to either active or non-active network management within collaborative policy delivery arrangements. It also empirically investigates the effects that network management and other network-level and project-level factors have on the policy output performance of these networks. Adopting a multi-method approach combining a qualitative comparative analysis, case studies as well as Bayesian regressions, the book will appeal to academics and students of public policy, public administration, and public management. It will also be of use to practitioners responsible for the design and the management of policy delivery networks.