I don't know if the performance can be something to be proud of. Apart from Smith who seems to be in the same mode Kholi was in few months back, the Australian batting is beyond pathetic. I know there are some positives like Renshaw and to some extent Handscomb but nothing to the extent that they can survive like India did without Kholi showing up in this series. Australia scored a total of 2025 runs across 4 tests and Smith scored 499. This series was close to 1-3 save for that exceptional last day effort by Handscomb and GAF's favorite Marsh. Having won 3 tosses and batted first 3 times and posting big 1st innings totals, having the opponent captain and equivalent star player out of form they failed to convert on many many occasions. For example O'Keefe was suddenly rubbish after the 1st test or Lyon was rubbish in the second innings after taking 8 wickets in the first.
Axe Marsh, Warner & Wade. Bring in more fresh blood like Renshaw and Handscomb.