The function and effectiveness of the church seems to be heavily dependent on leadership. Whether the state of a church is spiritually healthy and vital or spiritually poor and bogged down in apostasy, it can almost always be reflected by the state of the leadership. It’s through the leadership that God seems to predominantly guide and direct the life of the church. Clearly He can speak to and guide the church through others, but ultimately the church’s spiritual oversight is given to the leadership and God clearly says He will hold them to account for that.
So, those who feel called by God to leadership within the church have a massive responsibility to not only allow God to mature their faith and develop their gift of leadership, but do all they can to help shepherd and watch over the people God has placed in their care.