Desert Island Controller: who'll rise to the top of the Radio 4 tree?

With the news that the mighty BBC business editor Robert Peston has added his name into contention for the post of Radio 4 controller , the list of bigwigs battling for the top job continues to grow. Following Radio 4 Front Row presenter Mark Lawson's appearance in the ranks earlier this week , the number of heads has now reached 13. Surely someone's got be feeling unlucky?