The board shall determine the manner of hearing cases transferred or appealed from a decision of a deputy. All cases relating to labor disputes or to disqualification under subdivision (4), section three, article six of this chapter, and transferred to an appeal tribunal for initial determination, shall be heard by an appeal tribunal composed either of three administrative law judges assigned by the board, or the board itself, as the board may direct in particular cases or in particular areas. All other appeals from the decision of a deputy shall be heard by an appeal tribunal composed, as the board may direct in particular cases or in particular areas, of a single administrative law judge; a tribunal of three administrative law judges assigned by the board; a member of the board; or the board itself.