But our current county is very efficient in its use of money, and it has the highest bond rating of any county in the state. That's one of the reasons we moved here (they also have much lower property taxes and the police and fire service are exemplary.)
Just about the only county functions are sheriff and register of deeds. The sheriff runs the county jails and his biggest responsibility is running a taxi and boarding service for prisoners awaiting trial. Sheriff doesn’t do any significant law enforcement.
Sheriff’s office and registry of deeds are the proverbial hackaramas.
Middlesex County took on the responsibility of running two hospitals which were vital to providing jobs for the relatives and (invariably girl-)friends of county officials who couldn’t be hidden in the sheriff’s office or registry.