Mr. Richard Shakespeare:

You cannot devolve a function and not devolve the staff and budget. Without devolving these, it is pointless.

We might say to give the lord mayor all of the functions but do not give him or her staff or the budget and nothing happens. That is the key to it. It is as if form follows function or function follows form. If it does not work through, I do not see how it will work at all.