The property engineering department itself is short of people, why not rehire on-the-job retirees?

Technology and energy have declined. The property engineering department is a property management department that specializes in repairing the damage in the owner's home, and the retirees in this department basically apply for retirement after their personal skills and work energy decline. Even if the engineering department is short of people, the property will not re-employ these people for the sake of the owner.