Some universities have independent
departments, but some put departments under supervision of a faculty. For instance, a university has fifty independent departments, but another has 5 faculties containing departments. In the former, the Dean of Faculty is intermediate between the department chairs and the university administration.
I understand that most of these structures come from the university history, but how these structures affect the department performance, and why universities prefer different structures, instead of a standard one (which should be most efficient).
For example, what is the different of
Department of Computer Science in one university, and
Department of Computer Science in another university which is part of
Faculty of Engineering?