Practicing leadership requires being prepared to be flexible. Not every situation requires the same kind of leadership, so any rigid theory of leadership for pastors is bound to fail. In Meeting the Moment: Leadership & Well-Being in Ministry, church management expert G. Douglass Lewis advocates an approach to leadership that accounts for a variety of situations in parish ministry. Using case studies, he also describes how pastors ensure their well-being, e.g., avoiding burnout, in order to be effective leaders.