(1) Subject to any applicable provisions of the State Personnel Relations Law:
(a) The Director of the Department of Revenue may appoint and remove such officers, agents and employees as the director considers necessary. Such persons shall have the duties and powers the director from time to time prescribes.
(b) The compensation of all such officers, agents and employees shall be fixed by the director.
(2) Subject to and in the manner otherwise provided by law, all officers, agents and employees of the Department of Revenue shall be allowed such reasonable and necessary traveling and other expenses as may be incurred in the performance of their duties.