Thanks to @itsbruce for saying it better than I could. Of course it's possible to have a rubbish federalism that fails to deliver, but it's by far and away the best form of government for delivering more even distribution if it's done right. It would definitely take the UK some time to regain the administrative nous required (i.e., regions need to be underpinned by good local authorities, which in turn should be underpinned by sub-local authorities), but over-centralisation is much worse, as has been shown in the UK in so many ways that it brooks no argument.
Thanks to @itsbruce for saying it better than I could. Of course it's possible to have a rubbish federalism that fails to deliver, but it's by far and away the best form of government for delivering more even distribution if it's done right. It would definitely take the UK some time to regain the administrative nous required (i.e., regions need to be underpinned by good local authorities, which in turn should be underpinned by sub-local authorities), but over-centralisation is much worse, as has been shown in the UK in so many ways that it brooks no argument.