Edmund Gibbs is professor emeritus of church growth at Fuller Theological Seminary, Pasadena, Calif. He is an expert on the emerging church and has called for seminaries and theological schools to rethink the way they train pastors for the 21st century. His books include LeadershipNext: Changing Leaders in a Changing Culture.

Patricia M.Y. Chang is a lecturer in the sociology department at Stanford University in Stanford, Calif. She has studied clergy career characteristics and the supply of ordained leadership in some Protestant denominations, and she co-authored Clergy Women: An Uphill Calling.

A. Richard Bullock is an associate clergy member at St. Michael & All Angels Episcopal Church in Portland, Ore., and co-author of Clergy Renewal: The Alban Guide to Sabbatical Planning.

The Rev. G. Lloyd Rediger of Albuquerque, N.M., is an author, speaker and trainer and is ordained in the Presbyterian Church (U.S.A.). His books include Coping With Clergy Burnout and Clergy Killers: Guidance for Pastors and Congregations Under Attack.

H.B. London Jr. is vice president of ministry outreach/pastoral ministries at Focus on the Family in Colorado Springs, Colo., and co-author of Pastors at Greater Risk: Real Help for Pastors From Pastors Who’ve Been There. London is also a fourth-generation minister.

Kent Ira Groff is founding mentor at Oasis Ministries and the author of Clergy Table Talk (2012), in which he discusses physical, spiritual and emotional burnout among clergy. His home office is in Denver.

Charles W. Mueller is a professor emeritus of sociology at the University of Iowa, Iowa City. He has written about clergy-congregation mismatches and clergy job satisfaction.

Dr. Gwen Wagstrom Halaas is a physician and associate dean of the University of North Dakota School of Medicine and Health Sciences. She is the author of The Right Road: Life Choices for Clergy, in which she discusses the stress and other health threats faced by many clergy members. Halaas is married to a Lutheran minister.

The Rev. Donald B. Cozzens is writer-in-residence in the religious studies department at John Carroll University, University Heights, Ohio. His books include The Changing Face of the Priesthood: A Reflection on the Priest’s Crisis of Soul.