When the UHJ was first established in 1963, its membership included former members of the International Baha’i Council (these had been appointed by Shoghi Effendi) and members of various National Spiritual Assemblies. Later, the UHJ established the ITC, intended to take the place of the dwindling Hands of the Cause of God. Over several decades, however, more and more members of the UHJ have tended to come from the ITC, until today, ALL the UHJ members were elected from the ITC’s membership, which was appointed by the UHJ previously. This is known as a “feedback loop”. The result is a system that is by nature extremely conservative and not open to new ideas that could allow it to adapt to changing circumstances.
This is truly no better than the Roman Catholic Church, in which the Popes are elected by the College of Cardinals, and these Cardinals are themselves appointed by the previous Popes!