The justices of the Supreme Court shall have the power and authority to review, countermand, overrule, modify or amend any administrative decision by either the Chief Justice or the Administrative Director of Courts. A majority of all the justices shall constitute a quorum for such purpose. The concurrence of a majority of all the justices shall be sufficient to determine the question of whether and how such decision shall be so reviewed, countermanded, overruled, modified or amended.