(a) The board of managers is composed of seven members.
(b) The commissioners court and the municipal governing body shall each appoint three members to the board, and the commissioners court and the governing body shall jointly appoint one member to the board. Members are appointed for six-year terms. However, in making the initial appointments to the board, each appointing entity shall designate one of its appointees for a term expiring two years after the date of appointment, one for a term expiring four years after the date of appointment, and one for a term expiring six years after the date of appointment. The term of the initial joint appointee expires six years after the date of appointment.
(c) The entity that made an original appointment shall appoint a successor member on the expiration of a member’s term or to fill, for the unexpired part of a term, a vacancy caused by death or resignation.