Grant Kaplan is currently an assistant professor of religious studies at Loyola University in New Orleans. He received his Ph.D. in systematic theology from Boston College. He also studied at the University of Tübingen and the University of Fribourg. He continues to bring many of the latest findings in German scholarship to an English-reading audience, actively translating from German sources and specializing in the works of Johannes Kuhn.

Greg Salciccioli is a founder and team coach for Ministry Coaching International. He lives in Bend, Oregon. Patrick Lencioni is the bestselling author of The Five Dysfunctions of a Team, The Five Temptations of a CEO, and The Four Obsessions of an Extraordinary Executive. He lives in Lafayette, California.