You mean like the STV councils in Northern Ireland? (and Scotland soon) Might be a good idea actually; the other alternative would be to reverse the changes of 30 years ago and bring back the old Rural District/Urban District system with all urban areas still in the County Council areas.
Don't you mean the system introduced 30 years ago? Before then many cities were outside the County Council (though I don't know if that's true in Shropshire.
Merthyr Tydfil was outside Glamorgan County, though.) After, they were inside until these Unitary Authorities started appearing (which are rather confusing...I'm not sure what the current local governance boundaries in GB currently are, actually.)
