The board of trustees shall elect from its membership a chairman and shall, by a majority vote of all its members, appoint a director and assistant director who shall not be members of the board and who shall be deemed to be employees of the retirement system and shall be entitled to membership in the system. The board shall engage such actuarial and other service as shall be required to transact the business of the retirement system.
La. Consolidated Public Retirement § 11:1167