Elected Mayors may be scrapped by voters
The fact that there are campaigns in 4 out of the 11 local authorities that have directly elected mayors may get the government to recognise that this is not the solution of all problems of local government.
The reason why directly elected mayors are less sensitive to lobbying by ordinary votesr is that most things they hear are filtered by advisors. Whereas it is relatively straightforward to see your local councillor, getting to see the Mayor is much harder.
The Mayor, therefore, tends to deliver what the bureaucracy want, such as laying down gravestones - an issue in Stoke. (see linked Times Story)
The point about a council leader is that thay are accountable to the councillors hence councillors can force them to change tack on policies that are unwanted and ineffectual.