It isn't fair then to blame the coach for an ineffective team. It is important for clergy to do some regular reflective and honest self-evaluation. This is one of the reasons that clergy clusters and ecumenical clergy support groups are important. While there are some, I know very few pastors who are still in effective and healthy ministries after having been in the same place for more than 15 years. It is just as essential that congregations or ministry settings evaluate their life and organization as it is that they evaluate their pastor.
Spiritual health is as important for pastors as it is for congregations.
It is hard for pastors to maintain spiritual health when destructive dynamics are in place. Years ago a research team under the leadership of Kenneth Underwood did an evaluation of campus ministries. The report of this committee reflected that an effective ministry functioned well when there was a balance of four areas, pastoral, priestly, prophetic and governance. I have found that to be a helpful way to look at and evaluate the broad scope of ministry. The prophets of the Old Testament took the issues of the world and lifted them to God in prayer and study of the scripture and then reflected to the people regarding justice, faithfulness and truth.