<span>When a bureaucratic head leaves his/her post, someone previously beneath that person must be elevated to that job to preserve the bureaucratic structure.
In a bureaucracy, assignments flow downward and accountability flows upward - in theory. However, in reality, the top levels of a bureaucracy often have the power and the motivation to redefine "accountability" when convenient.</span>
True. The most successful was the Massachusetts Bay Colony, established by the Puritans... Source of information: http://thehistoryjunkie.com/new-england-colonies/