Edited sentence: At the heart of this confederation of Departments, Schools, Faculties and Colleges is a central administration team.It is small because the Colleges are self-governing and teaching staff carry out much of the daily administration at Cambridge.With more than 18,000 students from all walks of life and all corners of the world, over 11,000 staff, 31 Colleges and 150 Departments, Faculties, Schools and other institutions, no two days are ever the same at the University of Cambridge