katie spends most of her daytime hours taking care of her four kids, but enjoys teaching two psychology courses in the evenings at a local community college. katie likely has a

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.