Typically, established churches have difficulty in reaching newcomers. Roles, rituals, and rulings are already firmly established. One of the best cures for passivity is to involve five ten percent of the adults in a venture that involves them in an expression of their faith with other Christians in some other part of the world. The church is not a business. Needs are for leadership, not management.
Efficiency is less important than faithfulness and effectiveness.
Since it is difficult to assimilate new folk in old groups, new groups should be started. People join groups either to meet felt needs or to foster a goal. Although contextual factors and group norms and resources are very important, the appropriateness of the leadership skills, style, and character of the leader may be even more significant to success. At the local level, ecumenism is often very real and strong. Woe be the pastor who fights against it.