I think you drop Sharpie. I like him and think he's been the Wallabies best lock for the past few years but against Scotland/Wales he was safe and nothing much else. Time to start the young blood. I don't know who exactly but pick a couple of guys and get them stuck in. I'm not sold on Timani. I haven't ever seen him roll someone a la Eben v Bismark. Until he has a bit of a rep for being able to lay the hurt on, I think he's a bit over-rated on that front.
I think you start looking past Palu as well. The guy can't seem to stay un-injured for more than a month. And in all honesty, he only really been average against NZ and SA. He can bully Wales and Ireland around OK but he doesn't have the same impact against the SH teams.
If only either Moore or TPN could also play prop. But they don't so......you've got Pocock, Moore and TPN as pretty much the only forwards who I think can go toe-to-toewith their counter-parts for physicality (for lack of a better word).
So you don't try to match the ABs and SAs there. I think the Wallabies have to get more niggly, they have to be quicker, they have to be fitter and in your face all game long. Have you ever played against a team that you knew that physically you should have just completely rolled but they were like pesky flippin rodents who just seemed to be everywhere all the time and you couldn't keep them down and they just kept coming and coming and stealing your ball when you least expected it cos they made real good tackles round your ankles when you were trying to run over the top of them and then 3 more of them were all over you trying to turn the ball over and they attacked you as a pack rather than just man-on-man?
Ugly way to describe it but I reckon that's how the Wallaby pack needs to play right now. If they can play as a pack and play to their strengths, they may not necessarily have to be as 'physical' as NZ and SA are expected to be.
There's more than enough stike power in the backs....