Written for those who coach teams and leaders. Leaders need two different types of great timing to help their teams. First, they understand what kinds of help to give teams at predictable times in their work cycles. Second, they know how to influence their teams on the fly, sensing those unpredictable moments when a well-aimed intervention can help a team get onto a productive track. Drawing on examples from our own and others’ research on team leadership, we show how effective team leaders take advantage of the special leadership opportunities in the life of a group to create the conditions for superb team performance.