Dr. Bill Donahue is Executive Director of Small Group Ministries for the Willow Creek Association (WCA) and works with Willow Creek Community Church to train and develop small group leaders. The church has over 2,500 small groups and the WCA has over 12,000 member churches worldwide representing over 95 denominations in 27 countries. Bill Donahue es director del ministerio de grupos pequeños de Willow Creek Association. Previamente se desempeñó como miembro del personal de Willow Creek Community Church colaborando en la planificación e implementación del ministerio mundial de grupos pequeños. Reside en West Dundee, Illinois, con su esposa Gail y sus dos hijos.
Greg Bowman, a twenty-five-year veteran of small group ministry, serves as associate director of small group ministries for the Willow Creek Association. In this role, he develops resources and training events, and serves as a consultant to churches around the world. Greg lives in Elgin, Illinois with his wife Connie and their two children.