Church discipleship curriculum?

[Esaias]

The church's job is to disciple people. What is the best way to do that?

Considering that a church will have different people at different stages of understanding, knowledge, and maturity, how should a church go about achieving the following goals:

1. Ensuring everyone has opportunity to learn the Bible and its doctrines.
2. Ensuring everyone has opportunity to develop their personal service to God ("ministry").
3. Ensuring everyone has opportunity to mature in their personal and family walk with God.
4. No soul left behind!