Why does the BBC use the same presenters over and over again? - Telegraph

Why does the BBC use the same presenters over and over again?: "An interview with Kirsty Wark in the the Guardian serves to remind me of a question that has long exercised me. In the course of promoting the launch of her new programme – a revamped version of Newsnight Review to be called The Review Show and broadcast from (guess where?) Glasgow – she points out that she has no [...]"