In terms of style or coaching and game plans, I don't think there is anything wrong with clubs taking their own approach to how they are going to execute the game. Reds, Brumbies, Waratahs and Rebels aren't all going to have the same playing stock, depth, experience or skill to execute the game the way the Wallabies intend to do. Variety and diversity also ensures different teams are bringing different trains and skills which can then be pieced together at the test level.
Look at the Brumbies in 2018/2019 and their use of the rolling maul, that was eventually adopted at test level but was broadly detested by teams at Super Rugby level. Thats entirely down to the coaching decision of McKellar and where he believed his teams strengths were.
Where there needs to be collaboration probably comes down to fitness and conditioning, and ensuring that all the teams are performing or training to a similar level/best practice. Potentially it comes down to requesting players shift positions, but again that's a fairly subjective request which needs to be measured against the best interest of both teams. Moving player 'x' to another position might benefit his exposure, but if it negatively impacts on the teams performance then is it really a positive move?
