I love the be a pro mode. A few additions if possible would make it greater.
The match simulates if you're subbed off, but as a rookie starting out it'd be great if the match simulates until you were subbed on. Eventually earning your way into the starting line up. Could be subbed on as injury cover or just a straight replace. Also when joining a new team even if you're not a rookie, start on the bench and earn a starting spot.
Also (in real life) to make the All Blacks you must play in NZ. Currently my 70* rated player is playing for the ABs whilst signed for QLD city in the AU cup. Itd be nice if you made it so you could only make selection if you play in the NZ cup or a Super rugby NZ team.
Same should apply for Aus, maybe not South Africa as a lot of their players are able to play in Europe and still rep nationally.
Loving the game,