This model addresses boh the concerns listed for the previous model.

The regions are creatures of the national government: they might be governments but are more likely to be functional regions like those the state and federal governments use today.

Also, the local government level has been retained.

This would be a conceptually very simple model to implement. The states are abolished, and give all their power to the national government (what had been the federal government, but that name is no longer applicable). The national government then continues to run the country the way it and the states have always done it, through functional regions and local governments.

The big advantage of this model relative to the one we have now is the elimination of inconsistencies and competition between states. The national level of government can force the lower levels to adhere to single policies and to a single set of laws. The key reason this is possible is the lack of constitutional protection afforded the lower level governments: give constitutional protection to a local government and it becomes as potentially obstructionist as a state.

The biggest problems with this model stem from a risk of loss of democracy. The powerful functional regions are not directly elected, though perhaps we could make them so to some extent. The local governments, which are directly elected, are potential victims. The national government is unrestricted in the exercise of its power and may become tyrannous.

The other problems may be soluble, but probably not in ways which this talk can address. The national government, for instance, may have its internal checks and balances upgraded to compensate for the reduction in external checks. The right to abolish a local government may only be available under certain circumstances, with the High Court playing referee.