onthebeach

We do have Lieutenant General though. From my experience the rank is basically the same as an American three star. Major General equal to a two star and a Brigadier equal to a one star although not really seen as General rank in the Australian Army.
I am sure there are plenty of retired and serving Lieutenant Generals to chose from.
What you are seeing is the infancy of a real life Coast Guard.
When I signed out in 1972 there were dozens of "beached" LtCol's that hung in happy to fill in their time in any capacity. many of them reached General Rank through service seniority when the 'Lists' operated and plenty of them are still there.
Any of them could do the job.

Two men killed in separate Sydney shootings. 19-year-old Bassil Hijazi The teenager had links to the Comanchero bikie gang. The incident has come amid a bikie turf war between the Hells Angels and Comancheros.

This isn't a war between bikie gangs. It's a war between the Muslim Sunni & the Shia sects. Islamic War in Australia.