Out of the current Aussies, I think only Kev is at the right stage of his career, however he needs to strike while the iron is hot to try Europe again - maybe the Championship (hopefully Wolves).
Aloisi just arrived in a good club spot and should prove he can win overseas. I think Corica needs to leave the A-league and Milligan has only just started.
We might need to go international.
I know this was anathema 15 years ago, but why not an English coach? Their football environment is entirely different to what it used to be, there’s a much greater chance they’ll understand the Aussie mentality and its unlikely they’ll see living here as a chore.