1) accounting, used to liquidate the school's finances.

2) Administrative personnel, who are responsible for administrative work when not in class.

3) Logistics personnel, like the doorman on the second floor, belong to security guards, as well as canteens, maintenance and so on.

4) Psychological counselors, more and more schools began to introduce or cultivate themselves to adjust the psychology of teachers and students.

5) Trainers are responsible for external training.

6) Enrollment and employment, some schools are part-time teachers, and some have special leaders.

I think so much about other things to add for the time being.