John Bain tells us that the lack of "one voice when speaking to central government has been our great weakness for quite a number of years, as we have sent mixed messages by selling ideas and projects to government agencies from up to four councils which don't always match ..."
As long as it reflects our wishes, needs and desires a single voice is good, but as every council represents a different group of electors, each with its own priorities, four voices will often provide far better representation.
Sometimes speaking with one voice will be best, but why do we need to reorganise local government to achieve that?
Predicting money savings from amalgamations seems rather hit or miss (costs often seem to increase) and many of the economies of scale are achievable by cooperating rather than amalgamating.
I have become more and more disenchanted with a single unitary authority. I prefer to retain the NRC, which has been a stout bulwark against some of the misdeeds of the district councils and their mayors.