He would be a target I would consider for sure.
One thing that I think we have to be mindful in going after these coaches is this:
Ernie Merrick was a successful caoch at Melbourne and showing the same at the Jets. He was less successful at the Phoenix. Seeing how good he is, why would a coach of any note want to touch the job when they consider how a good coach previously went.
I've been thinking about this too and I'm sorry that you're tired of hearing about it, because here I am about to post some more about it (sorry!)
At Melbourne, Merrick played high and narrow, at Newcastle he plays high and narrow. At the Phoenix he started playing high and narrow, but found himself frequently burned with Sigmund and Durante lacking the required pace to play a high line. He publicly stated he wanted to play high but couldn't, so the Phoenix became deep and narrow.