we have yet another media personality for whom we can bewilderedly wonder how they got the job

Indirectly, through not being as rubbish as Jeni Barnett.

Readers with long and retentive memories will recall how this LBC presenter began 2009 by spreading unscientific nonsense and misinformation about vaccines, for which she was personally criticised by broadcasting regulator OFCOM. The phrase "It appeared that during this broadcast the presenter relied upon her anecdotal experience and was not adequately briefed on the wider public health issues" is amongst the most sharp criticisms I've ever seen from the regulator.

After a period of face-saving from LBC's owners Global, during which they hoped we'd forget anything had ever gone wrong, Miss Barnett's contract was terminated in September this year. The scheduling musical chairs led to a vacancy in the evening, filled by the erstwhile candidate for Norfolk North, a man who had single-handedly turned a Lib Dem majority of 483 into one of 10,606.

Not being as rubbish as Jeni Barnett is not the most tremendously taxing task, and Mr. Tosser appears to be attaining his usual level of excellence in pursuit of that goal.