New Zealand performed mentally very well, but there is a lack of a) size in the forwards. Kaino and Thorn have not been replaced, and while Kaino may come back next year he could have lost form, or get injured more easily. The All Black production line could produce more, but if not then a further attempt to Kainoize Victor Vito might be necessary. It's forgotten that Kaino was once disappointingly ineffective too. b) The backs lack enough gamechangers. With Ranger gone, it's worth looking elsewhere for the one or two extra players, one of whom will break a match routinely even if others don't.
South Africa and England are similar: dominant forwards but little developed backline strategy or even selection of the best attacking players.
Australia gained a mass of high quality backs, but have not put together a good enough gameplan to exploit them.
France? The current coach looks as inconsistent as the last. In fact the French coach of Italy, Jacques Brunel, looks better.