Good phrase "re energise the system it lays the foundations for the next generation". In my opinion for this to happen the Air Cadet Organisation needs its own budget separate from MOD and the freedom to look seriously at a self build programme of new light aircraft constructed under LAA rules. If you want to get young people engaged with STEM and flying then get an Air Cadet Wing to self build an aircraft under supervision with individual Squadrons assembling parts. The aircraft could then be flown under CAA rules from local airfields.
Something like this has been tried under sponsorship RAeS and Boeing UK and this could be up scaled to reach more cadets.
The problem was never with the volunteers and VGS/AEF "frontline" staff it was with the senior idiots who civilianised cadet flying 20 years ago.