The problem is the institutions are unaccountable and can't be easily made controllable by the electorate again. Bank of England, the judiciary etc. These control the country not the MPs. Blair onward
Judicial review at the moment is just completely insane.
If you want to do anything it takes the best part of a decade of planning and environmental review, in large part because there are a small army of charitable organisations (often with their fees capped) waiting to challenge absolutely everything.
A government consultation was recently blocked! A consultation!
We need to completely destroy this system, they can do something useful instead. Angels sing whenever a Quango dies.