Ephesians 4:11-12 sheds light on why coaching is done:
“So Christ himself gave the apostles, the prophets, the evangelists, the pastors and teachers, 12 to equip his people for works of service, so that the body of Christ may be built up 13 until we all reach unity in the faith and in the knowledge of the Son of God and become mature, attaining to the whole measure of the fullness of Christ” (Ephesians 4:12-13).
The role of a leader is to equip. A good leader doesn’t to the work of the ministry for people, but helps them learn to do the work of the ministry. The word equip is the same word used in classical Greek to describe the setting of a broken bone. It’s used in the gospels to describe the mending of a torn net. Essentially, to equip is to make something functional so it can be used to fulfill its intended purpose. That’s what a coach does. In my opinion, coach would make a good modern day translation of the word equip.
What’s the result? “The body of Christ being built up until we all reach unity in the faith and in the knowledge of the Son of God and become mature, attaining to the whole measure of the fullness of Christ.”