Book excerpt: Hackman (social and organizational psychology, Harvard U.) identifies the factors of being a team leader that will enable a team to work together efficiently to achieve organizational goals. He suggests that five conditions are necessary: having a real team, a compelling direction, an enabling team structure, a supportive organizational context, and expert team coaching. He integrates insights from interviews with team leaders with concepts from the social sciences. Annotation copyrighted by Book News, Inc., Portland, OR