How did john smith important to the survival of jamestown settlers

John smith is important because he knows a type of language that the Indians know. So when the Indians attack John smith can speak to them using their own words so, the southern colonist and Indians can have peace.

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.