The organization of the town into operating agencies for the
provision of services and the administration of the government may,
unless inconsistent with this charter, be accomplished by by-law,
subject only to express prohibitions in a general law or this charter,
including action to reorganize, consolidate, create, merge, divide
or abolish any town agency, in whole or in part or establish new town
agencies as it deems necessary or advisable and determine the manner
of selection, the term of office and prescribe the functions of all
such entities.