As a Countdown fan I don't really mind who presents it or puts the letters and numbers up. A new, nubile, numerate younger woman to replace Carol should be easy to find and the chairperson doesn't really have anything to do and there are plenty of pleasant, efficient TV presenters about.
As Carol has been edged out because of her vast wages perhaps now could be the time not only to replace her with a much cheaper newcomer, but to re-introduce the dollybirds on the early editions who did nothing but put the letters up and smile charmingly.