well i was too lazy to type the whole word but basically administrative agents, not immigration officers, they have enough of those, its just that the administration department is lacking staff and the paperwork is backlogged, so the immigration officers have to do admin as well as their own jobs,
its like going to a doctors office and the doctor is the receptionist , so basically they want people to take care of the paper work while the officers move forward with cases, they are doing this because September is a peak period