For cross-functional projects to work, you need to bring together diverse ideas and resources from across your organization. But office politics, conflicting objectives, and lack of clear authority can get in the way. The HBR Guide to Collaborative Teams provides practical tips and advice to help you collaborate more effectively. Whether you're leading your own direct reports or building a talented group from disparate parts of your organization, you'll discover how to align others' goals and skills so you can solve problems as a team and deliver great results.