Covid. Climate change. Refugee resettlement. Global supply chains. We are facing a new generation of complex problems, stretching across the public and private sectors and flowing over organizational boundaries. Historically we have looked to government for big solutions, but the reality is, the government we have now is a poor match for the problems we face. It is trapped in organizational boxes and handicapped by leaders who, too often, try to manage problems from the top down. As executive director of Deloitte's Center for Government Insights, William D. Eggers and public management scholar Donald F. Kettl show in this indispensable book, we need a government of bridgebuilders, public managers and leaders who collaborate with partners, both inside and outside government, to get the job done. They manage horizontally instead of vertically; they see their role as connectors; and they identify which players have the assets needed to solve the problems at hand.