It shall be the duty of the mission and pastoral committee of a diocese from time to time as may be directed by the bishop, and in any event at least once every five years, to review the arrangements for pastoral supervision in each conventional district in the diocese and, in cases where they consider it desirable, to make recommendations to the bishop in accordance with section 6 or 21 for any of the matters for which provision may be made under this Measure (other than section 50) by a pastoral scheme or pastoral order.