The whole lot needs to start from scratch, with a common sense approach.
It did re-start from scratch, when we took on Common European Rules, firstly, with the JAA and now more formerly with EASA. We took a perfectly good system threw it in the bin and replaced it with an untried and untestd European system. It is based largely on the FAA system with a further element of European tinkering with certain States having their finger in the pie.
It appears to be the CAA's position to continue to follow the EU rules even after Brexit, so how would you propose this revolutionary change? There are few if any people left in the system with any relevant knowledge to champion a common sense approach. There is no money and no incentive to change anything; they will simply bumble along stirring the porridge whilst things get worse. They can't even sort out the new ATO/DTO proposals ready for 2018.