The reactions of some posters to a possible concept is hilarious.
I'm not suggesting what should happen, just what could be a possibility. It will all depend on how Chieka wants to play the game and the skill sets required to execute that plan. The provincial location of individuals are irrelevant when considering the skills sets that they bring, except in the case of determining the case between equally balanced individuals and considering established combinations.
The whole reason for posting the concept is a consideration of how well Folau played coming into 13 (from 15) against Kurindrani, and the comments of coaches before and after that game. When you consider history and the selection of McCalman to play 7 in the 2011RWC against Ireland it is not a far fetched idea when you consider the balance of the skill sets available. The McCalman selection was not particularly bad given the skill sets available to Deans (in the flawed & limited squad he selected) what the great failure was, was not adjusting the game plan to account for the loss of the specialist 7 skill set (that and the idiotic idea of playing a conservative kicking game plan and not having a long kicker in the entire squad).
Having a fixed idea of picking the perceived best player in each position with no reference to the game plan to be played may not create a cohesive whole and leave key skill sets uncovered. Selection should be considered from the point of view of the game plan that the coaches want to play. That may change from game to game, but I doubt that.