Mo. Rev. Stat. § 36.500

The personnel division shall collect information, provide services, make studies and analyses as directed by the commissioner of administration of personnel covered by the provisions of this chapter and other systems in the executive branch of state government and to perform any other service as directed by the commissioner or the governor to promote uniformity in employment conditions and compensation of state employees, provide aid to departments in personnel matters and to develop a career system of state service that will enable the state to utilize all its personnel in as efficient and effective a manner as possible without restrictions of department, agency or other entity of the executive branch of state government.