I am not sure why the word "Recover" is related to AUS? They were never in slump to be honest. Yes, I agree they are ranked 6th now, but that just indicates that they performed poor in bilateral series.
I wrote it in their game thread last night - including Smith & Warner (they'll be back & back with a bang), 6, may be 7 spots are fixed and solid enough; they are rotating squad for the rest 4-5 spots. And, it's not that they don't have options, rather they have too many options, which makes it look like Aussies are struggling to find a combination.
Considering WC in ENG, as of now this is probably AUS's 16 men squad
1. Warner
2. Finch
3. Lynn
4. Smith*
5. Head
6. Mitch
7. Carey/Wade+ (One will make the squad, Ben Mcdermott is back-up WK)
8. Cummins
9. Strac
10. Zampa
11. Hazlewood
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Short, Maxwell, Stoinis, Tye, Ben Mcdermott (back-up WK as well)
If this squad needs to "recover" in a WC in UK, where they are assured of 9 games to make SF, I am sure there has to be at least 6 better squad than this in contemporary world.