My take on things:
Players
A. To'omua had a massive impact off the bench. I was very pleased to see him get a go at 10 for the Wallabies again. I have long thought that he's our best option at 10. I think he proved that today. Straightened attack, attacked the line, good defence, showed lots of speed/agility, etc. Most importantly, though, I thought his decision making was superb. Internal organisation of our attack (and backline) was enhanced with him at the helm, he dealt with pressure well, and he was able to put pressure on the opposition. 5/8s are decision makers first and foremost, and To'omua is the best at making decisions. Cooper was not too bad, but he doesn't deserve a second go. I have never been a massive fan, but I was really hoping for something today. He didn't deliver. Foley deserves to have a go, I would play him off the bench next week in a similar way to To'omua tonight.
B. Pocock was immense. I'm not suggesting that Hooper had a bad game, but Pocock partially reduced the dominance of the South African backrow. Obviously he had an immense effect defensively (slowing down the ball, forcing SA to commit more men to rucks he attacked, pilfering and forcing penalties) but he also had a positive effect in attack. He was almost always the first to hit the rucks he was aiming for, his timing when he isn't the first there is impeccable, and his ruck work was highly productive (he can clear out multiple people and thus do the work of many players). SA and NZ often go multiple phases without committing large numbers to the breakdown, but still cause havoc, largely because they have productive guys at the breakdown. His work is reminiscent of that whereas most other Wallaby players struggle to take out even one player. Further though, he often encourages other guys to get involved with him. He is a sort of 'first mover', and that's worthwhile. Prior to him coming on I would argue that SA's breakdown ascendancy was the reason we were behind. Our players weren't chasing the ball carrier into the ruck, leaving him isolated. When they did chase him in more often than not the work done was poor or poorly timed. He rectified that, and deserves credit.
C. Hooper or Pocock? Pocock is not an 8. He should not be playing 8. Hooper is a great player. He is not as good as Pocock. Pocock should be the starting 7. Hooper should be on the bench. I am of the belief that - were Pocock playing 7 in the first half - we would have scored more points (due to the work he does as outlined above). Pocock is the world's best 7 and his work in securing the ball for us was very possibly the difference between winning and losing today.
D. Higgenbotham? I rate Higgenbotham, however his impact today was negligible. He didn't get very long, but to be honest I think the breakdown issues are being unfairly blamed on him. He certainly contributed to that mess, no doubt, perhaps more than any other player (tbh I think Hooper had a larger impact, but whatever). With Pocock playing I do believe the issues Higgs brings to the team would be counter-balanced. I would start him again next week against Argentina. If he stuffs up again he's gone, but I believe he deserves another chance with more time on the paddock.
E. Very undecided about Giteau. The only reason I ever thought he should be in the team was for his kicking. He did next to no kicking in general play and his one shot was awful. He had some moments of brilliance, but in general was not up to it. I do not, as yet, have a suitable replacement in mind. I am sick of this To'omua at 12 shit, he's a 10. I would play Giteau again next week as his last opportunity. I still reckon JOC (James O'Connor) would be the best option at 12, but let's not go there...
F. Skelton was disappointing. I'm a big fan of his, but he didn't play too well tonight. He was too tired too early and he didn't do enough work. He needs to become a productive ruck worker, like Pocock. At times for the Tahs he was. He does not deserve disproportionate criticism for his work though - I believe Simmons, the two starting props, and even Fardy were just as ineffective at ruck time and therefore deserve some (but not as much) blame. Cheika needs to blast him this week and get him back to the fitness level he was at when the Tahs started the season. He was also used poorly - I am so sick of him running from a standing start because either the pass is mistimed or he has mistimed his run. I would start him next week, again - last chance. He is a great player, but he needs to do thinks differently. Horwill was good when he came on, relative to his usual standards, and Simmons was just about average. I am very keen to see Arnold get a go, but it would be unfair to drop any of those 3 after tonight.
G. I thought Genia was good. Phipps was also good. I think people are overrating Phipps contribution, however. I don't think he did anything markedly different from Genia, the difference was that the players around Phipps were better. They played more or less the same. Genia, for mine, was slightly better in that he (as he always does) demanded the disproportionate attention of defenders, creating space for players outside him at the point at which he made the pass. His defence was also good. He offers X factor, and I would most certainly start with him next week again - he did no wrong.
Other things
A. The breakdown was the big issue tonight. Rectified somewhat easily with Pocock on the field. People will want McCalman to start now, which would be very concerning. I would stick with Higgenbotham, but even then when Palu's not injured he will/should replace Higgenbotham as starting No. 8 and fix some of the workload issues. Unlike McCalman, the extra work he does actually has impact, and he's a decent ball runner. Ideal choice for No. 8 for now with Higgenbotham on the bench. Another thought: If Cheika wants to have two backrowers wide on either side of the field, why wouldn't Higgenbotham be one of them? Made very little sense to have a guy who is renowned for not doing work (and also renowned for his attack in wide channels) as the guy in the middle of the field while your hardest worker (and a guy not known for his ball running) is out wide. I would make Fardy my middle guy with Higgs replacing him in that wide channel.
B. Scrum was actually only shit on one occasion. The other times it was solid enough. Holmes made a difference, but I wouldn't start with him. This body position stuff about Skelton is largely inaccurate. I can't believe that the same people that bitch about his body position turn a blind eye to the fact that our backrow - mainly Hooper - are almost always not applying force to the scrum. We lose a huge amount of shoving power whenever the going gets tough because our backrow effectively unbinds. This happens all the time, and it needs to be fixed. Higgs was good at pulling the ball out of our attacking scrums just before the pressure got to us, and the channel 1 method Ledesma has drilled is working pretty well. Scrum was better than it normally is.
C. Maul was not done well. SA were good at shutting it down, but changes could be made. Our structure at the point at which we initiated the drive was never ideal. We would do better to spend more time getting set, getting the maul long (a la England 2003) and ensure the right structure is in place before driving. The Brumbies did this, and it worked well. Further, I really think a double round would have worked well on a few occasions. SA had really numbered up on the front of the maul and a deceptive switch would have brought them unstuck. Our maul defence, the one when we didn't commit and Kepu came around the side, was superb. We need to do that more often, among other tricks. If you think about it, the same logic might apply to rucks/tackle situations. Lineouts in general were good.
D. I was really impressed with our attack. Honestly some of the best looking Wallaby attack since Larkham (so unsurprising that he's the brains behind it). Bodies in motion, decent hands (there were very few handling errors, good for a first hit out), etc. Issues in attack were A. That we went wide too early most of the time, B. Cross field running and C. Too many shit kicks. A and B are somewhat solvable as other posters have said. C is a weird one. Clearly Cheika was trying to show/develop a second game plan based on territory. Issue is no Aussie backs have decent boots. Not sure what we do to fix the kicking issues, really.
E. Defence was pretty good, except in broken play. Could have been a bit more intensity, particularly from guys like Skelton - I didn't see enough dominating hits (legitimate, cheap, or otherwise).
Anyway, that's it for now. Sorry for long post, very stream of consciousness.