The LNP's only hope if they do get a majority (most likely with Katter's help) is to go Nationals. Ship out ScoMo and Malcolm and give Barnaby the top job.
Cormann and Frydenberg can remain in Treasury, elevated a bit, and chuck Chester or Birmingham in to help them out. Birmingham seems a bit of a lefty, although I don't know what the links with the Aus Hotels Association mean. I know they're big-time lobbyists and if they're like the licensing and liquor body in NSW then they should be kept away from real power, but a National in charge of Education should give Gonski a proper look in.
Meanwhile, the Liberals can finally give Bishop their top job. They need her there to distract everyone from the lack of women in their party (it looks like lip service to women if she never gets the full chance, and they can make Marise Payne deputy leader to double-down on that), and given Bishop has been a perpetual deputy it will put all the Liberals in the right frame of mind to spend the next 5-10 years working out what they want their party to actually be.
Who knows how the Nationals will perform, but it will be a distinctly different voice so that people can think of it as a circuit-breaker, and it will at least give more than lip service to the Nationals' role in the Coalition, while undoubtedly curbing their natural instincts to be protectionist (presumably).
I'm only quarter joking.