Dave Ferguson is an award-winning author of Hero Maker & B.L.E.S.S.; the CEO of Exponential and founding pastor of Chicago’s COMMUNITY, a multi-expression church considered one of the most influential in America.Warren Bird, Ph.D., is Senior Vice President of Research and Equipping at ECFA.org (Evangelical Council for Financial Accountability). Previously he was Research Director at Leadership Network. He's an award-winning author/co-author of 34 books for pastors and church leaders, church boards, and seminary professors. Bird researches cutting-edge churches and works with their leaders to multiply their evangelistic and disciple-making impact.
