As the new world of work reveals new challenges, leaders today come to grips with new notions of the new nature of work. Fields, like software development, that tend toward highly complex and "wicked" problems, require ever-evolving responses and supportive behavior. Now we understand that the answers we seek will only emerge from people working together to share what they know, as collaborative, resilient teams of motivated learners. What familiar leadership skills still apply? What's the leader's role in setting the context for such new work? What new habits of behavior will effective leaders practice? How can leaders nurture the growth of resilient teams to meet the challenges of tomorrow?