In order to assure an adequate number of qualified psychiatric technicians, psychiatrists, physicians and surgeons, psychologists, nurses, social workers, laboratory and other technicians, and ancillary workers, the department shall negotiate with any or all of the following: the University of California, the state colleges, the community colleges, private universities and colleges, and public and private hospitals, and arrange such affiliations or make such contracts for educational or training programs and awards training grants or stipends as may be necessary. Arrangements may be made in the hospitals and clinics operated by the department for the clinical experience essential to such educational and training programs, and positions in the department as interns and residents may be established.