Conversation so far:
who are included in the house keeping department
Executive Housekeeper, Supervisors of Housekeeping, Operating Staff
what does an executive housekeeper do
The Executive Manager is the chief of housekeeping department. The Deputy Housekeeper and Assistant Manager of Housekeeping report to him.
what do supervisors of housekeeping do
The supervisors report to the Assistant Housekeeper.

Question: what do the third type of staff do
Self-contained rewrite: what do operating staff do