27. Appointments.-All appointments of the staff of every School, except that of the Director, shall be made in accordance with the procedure laid down in the Statutes, by:-
(a) the Board, if the appointment is made on the academic staff in the post of Assistant Professor or if the appointment is made on the non-academic staff in every cadre the maximum of the pay scale for which exceeds prevalent grade pay scale for Group "A Officers;
(b) the Director, in any other case.