The Iron Law was promulgated by Jerry Pournelle, an American essayist and novelist, who maintained that any organization has two kinds of people: those dedicated to furthering the organization’s original mission—like academics who want their university to turn out well-educated students; and those dedicated to furthering the bureaucracy by expanding their budgets and staffs. Pournelle’s Iron Law of Bureaucracy holds that the second group will inevitably take over the place.
View some diocesan websites and check out the number, titles, and duties of the diocesan staff and you'll see what I mean. Church leaders who prang on about how congregational life must change and be less about the church buildings and formal parochial life never seem to think that change should also come to the bureaucracy that they enable and expand.
If we are truly to reform as a church, we should have some progress towards a staff-free diocesan office.