Maria Miller needed to resign as a cabinet minister. Frankly, she should have resigned as an MP and be under police investigation; although, to be fair, that applies to rather a large number of people currently in parliament.
What cannot happen is for Maria Miller to be replaced by a man. Cabinet reshuffle all they like but the number of women simply cannot drop. Parliament itself is unrepresentative of our country; the cabinet even more so. We need more women in cabinet. Not another rich white man.
At this point, I’d be open to any woman being promoted to cabinet.