Ohio Rev. Code § 5913.02: Governor's military staff.

The military staff of the governor may consist of any of the following:

(A) An adjutant general in the grade of major general, who shall perform the duties of quartermaster general;

(B) An assistant adjutant general for army in the grade of major general;

(C) An assistant adjutant general for air in the grade of major general;

(D) An assistant quartermaster general in the grade of colonel or brigadier general or any retired officer who has appropriate qualifications for the position, as determined by the adjutant general and the governor.

All persons named in divisions (A) to (D) of this section shall be appointed by the governor and shall hold office during the governor's pleasure.