Urgent what factors led to the norman conquest?

The Norman conquest of England was the invasion and occupation of England in the eleventh century by an army of Normans, Britons and French led by Duke William II of Normandy. William defeated Harold II of England on October 14, 1066 at the Battle of Hastings and was crowned as King of England on Christmas Day of that year. He then consolidated his control over England by establishing many of his followers on the island, which also involved the introduction of numerous political, economic and social changes in medieval England.

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.

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )