I would have someone like Paul Temple or Ramon Tribulex rather than an Aussie coach nobody else wants.
I did say on twitter that Paul Temple was one who sprung to mind when was talking with Ryans Rovers. It'd be a kiwi, because that seems to be what WelNix would want. I have no problem with that either.
However given that, I think out of these candidates, an ideal situation would be to have whoever it is as an assistant under Ricki for a season or so first. That would mean Greenie loses his job, but he can always fall back on his other job as ernie if he wants to stick around the club.