David Kinnaman is the author of the bestselling books Faith For Exiles, Good Faith, You Lost Me and unChristian. He is CEO of Barna Group, a leading research and communications company that works with churches, nonprofits, and businesses ranging from film studios to financial services. In this podcast conversation, we talk about various interesting trends facing the church, including the need to "clean out the attic" of the church; that is, to reassess what it is we're doing and whether we should keep doing these things.