Leadership: Who are the leaders and what is the leadership structure? Is the simple church understanding of leadership biblical? Is there enough control to prevent abuse, cultism, and heresy? Are the lay leaders in simple churches qualified for the care of others?
Longevity: According to sources within the movement, the average lifespan of a simple church is only 6 month to two years[23]. This leaves critics to wonder how Christianity can survive in such a transient movement. What will be the long-term impact of simple church when it lacks the sticking power of more traditional forms of church?
Teaching: It is rare for simple churches to have sermons or bible classes in the formal sense. Critics wonder when teaching occurs and how people are formed educationally and doctrinally in simple churches. Without concentrated teaching, sermons, and bible classes, how will believers be educated?
Orthodoxy: Without denominational control or pastoral oversight, who will maintain orthodoxy among simple churches and its participants. Isn't it a breading ground for people with wild theologies who would get drummed out of more traditional and more orthodoxy churches?
Cultural Accommodation/Syncretism: Has simple church sold out to a culture that sinfully refuses to go to church? Is simple church just caving in to postmodernism? Does simple church promote the West's tendency to worship the individual and individualism?
Outreach Potential: When the unchurched want to go to church, how will they when there is no location and no phone book listing? What about visiting Christians in the area?
Relationship with Established Churches: Is simple church another movement pulling people away from congregational churches? Is simple church a threat to more traditional models? Do simple church practitioners condemn or criticize other forms of church? Can simple churches and traditional forms of church work together?
Taken from Wikipedia
