We got hammered 5-0 in Australia not so long ago. Wood was the best bowler on either side, so hardly a one off? that is greatness. 17 wickets at 26
Jimmy has been going to Australia for 20 years (on the basis the more you travel to a country the easier it should get) and averages 34 for context
Root has a test average of 34 in Australia, Cook 48, Pietersen 46
Root for me will never be a great until he cracks Australia. He is struggling again this series
Australia are the benchmark and sort out the good, very good and great.
Jimmy averages 35 home and away against Australia. In my view that discounts you from being a great