The Wallabies need a HC and Assistants that can get the best out of the players. A lot of people say it's 80% mental toughness on game day.
Reckon anyone could coach the squad and get the same or similar results as the current mob. Same results would be achievable with anybody being Captain/Coach. The ARU would probably save a couple of mill as well.
The real skill of a HC is getting his players to play their BEST rugby they are capable of playing, week in and week out. This is not happening primarily because I think Chek is one dimensional and is unable to vary his processes. I also think (as I have said before) there are deep "cultural" deficiencies within the group which are unable to be addressed by the current Coaches (maybe excluding Byrne and possibly Larkham - all the rest need to be moved on).
S2050 - as you infer - assuming a broadly equivalent athletic and rugby-playing level of squad, it's absolutely the case that elite coaching is the differentiating factor in attaining (or degrading) superior game results over time. It's been proven time and time again.
Further, and to this very point, when we as fans or rugby analysts or both look at a rugby player or team of players in action, we are really looking at two separate dimensions of time and space. These dimension unite in the moment of play, but they are different.
One is actually, physically what we see happening here and now with player x or team y. On the day, in the moment of immediate observation, how do they kick, run, tackle, swerve, work in pods, etc, etc. Do they do that well, not so well, or plain badly.
Two, and whether we acknowledge it or not, we watch just as much in that same moment of observation what might be called the
embedded history of that player x's rugby life cycle to that very moment. Namely, the calibre and type of rugby institutional history player x has endured and been exposed to in terms of coaching quality and depth, nationally preferred modes of play (consciously or unconsciously designed and practiced over past periods of time), types of teams, support systems, physical training, team cultures and core values and so on.
That dimension two, that embedded history, is just as important and interesting to understand as is dimension one, 'the skills in the now'.
Outside innate rugby playing abilities, I would argue that the most important element in that embedded history, that second dimension of observable data, is the quality of rugby coaching that player has experienced up to the moment of actual play as we observe it. (And btw that history of rugby coaching more broadly reflects the institutional history of the rugby system that creates that complex coaching lineage or coaching infrastructure.)
So, whilst I fully respect all posters here commenting upon the 'in the now' factors like who should play 8 next Test match and how should this 8 play etc, it should also be respected by all posters here other posters' free rights to comment and analyse what we see - week to week, match to match and trends relating thereto - in that second dimension of rugby playing data I refer to above.
Namely, what we see, negatively or positively, as to how a players' (or team's) immediate life history and playing capability is being affected by the calibre of the coaching they are receiving and how this is impacting upon the underlying quality of what that player is able to do and contribute to team outcomes.
This whole second dimension of observable data will be much less immediately dynamic and volatile than is that of swapping a team of 23 around from one Test to another, but in terms of outcomes and results, it is absolutely no less valid.