As a male interim BBC director-general is announced the same week that Carol Kirkwood unexpectedly steps down, former BBC producer and editor Fiona Chesterton looks at the snakes and ladders world of the BBC, and asks why women are still the losers S o here we are again, asking ourselves: does the BBC still have a problem with women, especially older ones? The unexpected departure of Carol Kirkwood from BBC Breakfast , although apparently her own decision to retire at the age of 63, is merely