The Australian's impact at London Irish enhanced his reputation and he insists once England came knocking he could not resist their approach.

"I enjoyed what I did at London Irish but I recognise England have been very good to me, both as a student and professional rugby coach," he said.

"A chance to be a part of this coaching team is a once in a lifetime opportunity. I was quite excited about being sounded out.

"Johnno's standing in the game is very significant in this country. If you're going to hitch a wagon to anyone, then this is a regime that I'd like to be a part of."