There was quite a long piece about him on R4 the other day. Whatever his suggested leaving date, the tone of the pundits was that he'd have stayed on if things were going well, however his popularity has dropped like an anchor.
And for Quaver, one key part of that popularity drop is due to the extreme displeasure re the 20mph limit thing, castigated by huge numbers of drivers, invariably objected to by bus companies, and regarded as a nonsense (I hear) by the Police, who whatever they say in public have no interest in enforcing it, their already limited resources have far better things to do. And I'm told that anyone who supports that limit should check how many engines have been designed to be efficient at that speed?!