In 2 Corinthians you get a picture of how Paul is a model on how to be a leader in the church. We live with Paul through the problems of overseeing many congregations in different stages of growth. We are given examples of how to deal with many types of disciplinary issues yet throughout it is a great example of the use of authority coupled with humility - two things that the modern world has great difficulties in putting together. If you ask Christian leaders for one of their greatest difficulties in ministry is, it is this, how to lead without arrogance. The answers on how to do that are here.