The problem with that slot is that nobody will ever come close to Terry Wogan. A thoroughly decent, witty, funny man who understood what a privilege it is to be invited into people's mornings.
It's been a stream of one crass loudmouth after the other, with the exception of Gary Davies who is a proper DJ.
Time to give the job to someone who will actually appreciate it and bring something to the table in terms of wit, knowledge and affability. Qualities which Trevor Nelson has in spades, but I doubt he'd want the poisoned chalice.