A. All powers of the municipality are vested in the commission. The commission shall:

(1)     pass all ordinances and other measures conducive to the welfare of the municipality;

(2)     perform all acts required for the general welfare of the municipality; and

(3)     in addition to the office of manager, create all offices necessary for the proper carrying on of the work of the municipality.

B. The commission shall appoint a manager and shall hold him responsible for the proper and efficient administration of the municipal government.