Just wanted to give Ardie Savea a little more acknowledgement.
He has always been outstanding in attack. First he is extremely powerful in contact, and his post-contact metres are excellent. This is really crucial because that one guy who bends the line sets the entire attack in motion. The advantage line is shifted, the momentum changes completely, more defenders are committed - it's attacking heaven. Second, he has always been very quick, so running down the tramlines he is as threatening as many backs. But he has added a subtleness to his game, little pop passes, passes off the base of rucks, and the timing and delay of passes as first receiver. Offensively, Ardie is ridiculous at the moment.
Defensively, Ardie has been a wall in the tackle. Even though he plays 8, he is often there 1 out from the ruck to absorb impact from a damaging ball runner. He hit Wyn Jones with a booster very hard in the game, Wyn is the Lions first choice loosehead. He won another clean turnover in the ruck, as he normally does. Even in a team with Papali'i and Cane, he is probably still the best turnover effector. I suspect as an 8, his tackle count and ruck-count are down significantly. But when he does, he hits them hard. Rucks might seem like a small matter but the ABs are susceptible to under-committing to rucks, and getting blown over. Work-rate is very important, which is the unseen work that donkeys like Owen Franks, Andrew Hore, and Richie McCaw did for us for so many years. If Ardie is 8, at Akira or Luke at 6, then work-rates needs to be emphasised.
If I have one criticism of Ardie, it's 2 things.
1) Tactically, he's not quite an 8 in terms of pitch coverage. He is always on the frontlines, and doesn't quite drop back for kicks, or indeed as a 2nd sweep behind the initial defensive line (he is in the defensive line most of the time).
2) The back-row has to have balance, and this includes for areas like line-outs. Line-outs are exceptionally crucial in the modern game, accounting for over 2/5s of tries. In the most critical games, failure at the lineout is catastrophic. No team that has won the WC has ever done so without a great LO. 1999, Australia's LO was excellent, even with their reserves. England's was metronomic in 2003. In 2007, everyone of the Boks back-5 was above 1.94m. In 2011, Ali was excellent and Thorn was underrated, but Read and Kaino were good. Ditto 2015, with the same backrow. And of course 2019 saw a Bok team that basically replicated 2007.
Saying this, in 2019, England beat us with a relatively short line-out. They had their 2 locks, but the backrow of Curry, Underhill, and Vunipola are not great at the line-out. Yet, even though we had Barrett at 6 and Read (who is one of the great line-out exponents) at 8, we lost the ball twice and never challenged theirs.
Ardie and Sam are both not great at the line-out (Ardie is probably slightly better). Hoskins is excellent as a line-out forward, while Shannon and Akira are both very good. Luke, Dalton, and Ethan are average. So do we have the right combination. This is especially if we go with Samisoni or Asafo off the bench. Both of them are excellent in the open, but they are not assured at lineout.