"Problem with cairns is they spend all there money on imports"
No, no they don't.
It might well change under Kelly, but typically Cairns go trawling for bargain imports, once everyone else is finished. They generally do very well targetting guys looking to make a name for themselves overseas. Its no surprise that when they strike gold, those players are quickly poached. Guys like Wilbekin, Craig, Trice, and now Trimble have all moved on to bigger & better opportunities.
It's a fair deal. They still get more money than the G-League, they get to show their stuff and if things go well they'll get much better offers. Meanwhile Cairns get the services of a decent import for a season or two.
It's a lot easier to find diamonds in the rough with imports, due to the sheer volume of guys available.