Cutting down dioceses

Pope Francis met with all the Italian bishops, 250 of them and gave them project of reducing their numbers, an interesting insight into the future of his Papacy.

I am sure many will find good historical reasons why they and their dioceses should continue but the Church is not a museum. In the Church whatever shortages there might be there is never a shortage of bishops. But there are diocese in the world where the faith has almost died out, or diocese where there are hardly any priests, or vocations to the priesthood, or diocese where the faith has become so aberrant that it is hardly recognisable as Catholic, should these not be abolished or merged?

The same thing could be said for Metropolitan Sees, especially in Europe, where the incumbent is by custom raised the Cardinaliate. In the UK we have three Cardinals (I include Northern Ireland) which seems excessive, when there are vast swathes of the Church with no Papal elector but much more vibrant Churches.