However, in times of rapid and episodic change, people have to keep learning and learning how to learn. The truths of last year may no longer be credible. In changing times, people build knowledge by using the best information available, by forming theories, and then by testing those theories. By testing their theories, people either confirm the theories, discard the theories, or revise them. A theory recently confirmed may have to be reviewed tomorrow.
Nothing works everywhere.
There is always more than one thing that works in any one place. Pastors in congregations learn how to lead in the postmodern era through different processes than did their predecessors. Pastors can't learn how to lead in one way and then continue leading that one way in every parish they serve. Effective leaders learn all they can. They listen to people in other organizations for ideas.