Time to break up the RAF
I wouldn't say that the RAF should be disbanded, but its responsibilities should be scaled back to a few, well defined, roles.
Control over most of the rotary wing aircraft should be handed over to the Army, especially over their transport shortage.
The RN should be allowed to operate heavier, fixed wing, aircraft. But this should be balanced on expected deployments. If we're expecting to fight more wars away from RAF bases then the RN should have larger air groups capable of striking enemy targets and providing air support.
And forget STOVL for the carriers - we need real (CATOBAR) carriers! (Fortunately the new Queen Elizabeth class carriers have a long enough flight deck. Aan angled landing strip and catapults can be installed afterwards if needed. There's a little forward planning on the part of the Navy there)