Conceptually I think it is a workable solution. What we have seen over several years now ws the evolution of the game. Everyone playing the game in a similar manner; complete your sets, kick to a corner, make them work it our, capitalise on the error etc. 25 years ago Sheens and our bouys changed the way the game was played - you score 30 we'll score 31 with an unstructured and unhindered style of play, enter Melbourne who revolutionalised the game again with structure and domination of the ruck (wrestle) and Penrith have evolved this style andadded the ability to attacking using defence.
Playing three halves isn't completely new - we have seen it done at SOO level; however, usually the thrid half relaces the hooker. What you propose is something different though; with decentralised play making wider of the ruck. Same Same, but Different, to Yeo pushing the playmakers wider at the Riff.
While feasible, I don't think we have the side to make this work. The reason being that we do not win the collision and this is so importaint in contolling the ruck, on bith sides of the pill. If we can't do it now I don't think we will be able to do it with two 19 year olds against experienced NRL players. We could probably have a bit of success with ball in hand, but in defence they would target our middle, take advantage of the skills mismatch and roll up the field. Could we outscore them? Potentially, but it is very hard to gain momentum with the ball in hand if you are unable to control, or at least be competitive at the ruck.
I think it could work if you played Latu F defensively at centre but offensively as a psuedo lock meaning Twal and Bird would plug the middle in D. Given Bird's ability I think it could work. I would think that the time to introduce something like this wpuld be during the bye round - too much of a change to the offensive strtegy to intorduce betwwen games.