During his lecture on dream theories, Professor Hundt points out that a weakness of the approach to dreaming is that there are no reliable rules that exist for interpreting the supposedly latent content of dreams and no objective way of determining whether an interpretation is correct.

Freudian/Psychoanalytic

Explanation:

Psychoanalysis is a school of therapy that gives a lot of importance to what we dream since one of its main proposals is that our unconscious manifests itself in our dreams.

Freud wrote a book called "The interpretation of dreams" in which he gave some guidelines on interpretation based on his experience but we cannot say that there is actually reliable rules for interpreting dreams as well as their "hidden meaning" (latent content) or a way to say  that an interpretation is correct.

Therefore, we can say that one of the weakness of the Psychoanalytic approach to dreaming is that there are no reliable rules that exist for interpreting the supposedly latent content of dreams and no objective way of determining whether an interpretation is correct

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.