Paragraph 256.1b in the UMC Book of Discipline is a wonderful direction, it seems to me. It provides important guidance to the Wesleyan way of Christian formation and seems to encourage the use of classes and class leaders even today:
Accountable Discipleship—Historically class leaders provided lay pastoral leadership, and classes and class meetings were the basic structural means of Christian spiritual formation in the early Methodist societies.
Class leaders may be commissioned and classes may be organized within the local congregation for the purpose of forming persons as faithful disciples of Jesus Christ through mutual accountability and support for witnessing to him in the world and for following his teachings through acts of compassion, justice, worship, and devotion under the guidance of the Holy Spirit.
Here is a good GBOD web page on this: Class Leadership in Covenant Discipleship.
How many churches today actually commission class leaders?