The group, like its forerunner, the adult Sunday school class, works within the context of the church body and can greatly enhance the effectiveness of the church's pastoral ministries. The ABF structure can involve as many or as few people as needed. Some of the assignments can overlap each other or spread out to assistants to enlist more members in leadership positions. First is the class coordinator. The coordinator can be the teacher of the class or a kind of administrator who sees that the class has a teacher and suitable curriculum for Bible study.
Some coordinators schedule different persons to teach a variety of series during the year.
Ultimately, the coordinator is responsible to see that the class functions properly, maintains its correct position in the overall plan of the church, and accomplishes its purposes. The role of class host or hostess often is filled by a couple. They greet people as they arrive and see that refreshments are in place, resources are available, and teaching equipment is in place and working. They also handle other similar tasks. One of them generally opens the class with greetings, song, prayer, announcements, and introductions.