Mont. Code Ann. § 17-7-103
Governor chief budget officer -- appointment of budget director
17-7-103 . Governor chief budget officer -- appointment of budget director. (1) The governor shall be the chief budget officer of the state and shall appoint a budget director who shall hold office at the pleasure of the governor and perform the duties assigned by law or by the governor.
(2) The budget director may appoint a chief assistant and may employ such other personnel as may be necessary to carry out the provisions of this chapter.