I would have all the pilots examined in literacy, mathematics, physics, and aeronautical subjects, all over again, no matter who they are.
Then I would sack all of the high-school drop-outs and pay the others more to do their job with pride.
The rest would be replaced with pilots of a higher standard, if they could be found. If not, no worries, just farm off some of the less-important flying to Jetstar for a while.
Oh and I'd pay the haggard, old boiler hosties to leave, along with all the flouncing, mincing poofs and cranky cadets.