The person–situation distinction allows you to consider unique individual factors as well as situation factors that might be the source of the problem. if an employee leaves because his or her job has become boring and less meaningful, this reflects a(n) factor.

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.