You do realise that most of the CAA's work was, until last year, done by EASA. The CAA, and the rest of the UK aviation community were assured by government, MPs and Brexiteers, that we would not be leaving EASA... that is until a few months before we did actually leave. This left the CAA a matter of months to try and recruit, train and build a functioning NAA. Something the UK had not had for over 15 years.
You do not just build it back up again in a year, especially one as difficult as this one has been.
It will get there eventually, but it will never be the world leader it was, that ship has sailed.