Margaret Beckett for Speaker!

No, not really. She would be an awful choice, and not just because she has no discernible jawline/chin and instead just has folds of flesh completing her strange face. See, she probably isn't the person to clean up Parliament:

Mrs Beckett has faced some questions about her own expenses - she claimed second home allowances of £72,537 from 2004 to 2008, despite having no mortgage or rent to pay on her constituency home and living in a grace and favour flat for part of the time.

Most people with that sort of record would be fighting for their jobs and their reputation, rather than seeking a promotion to sort out the very loopholes they exploited...