New idea for central character

Up until now I have been thinking along the lines of the central character being a politician (e.g. Prime Minister or Foreign Secretary). I have just had a fresh idea: the central character being an advisor to a politician who becomes embroiled in a scandal. Focusing on the advisors and civil servers is not new or innovative - 'Yes, minister' is just one previous example of a drama to do this - but it remains an option.