The director of human services or the administrators in control of the institutions are authorized to secure the services of consultants to furnish advice on administrative, professional, or technical problems to the director or the administrators, their employees, or employees of institutions under their jurisdiction or to provide in-service training and instruction for the employees. The director and administrators are authorized to pay the consultants at a rate to be determined by them from funds under their control or from any institutional funding under their jurisdiction as the director or administrator may determine.