Notsomuch, the big units in Rugby have to have specialized knowledge that requires year of training and a vastly different mindset. So I can't see marginalized bigmen from league having any hope whatsoever of making it in Union.
So League props are getting smaller. Now we have 6 foot 2, 100 kilo props, 6 foot 2, 100 kilo back rowers, a 6 foot 2, 100 kilo 5/8, 6 foot 2, 100 kilo Centres and, you guessed it 6 foot 2, 100 kilo wingers. And all of them are so talented that they can take on the rigours of any of those positions. RL is an amazingly complex game.
So League props are getting smaller. Now we have 6 foot 2, 100 kilo props, 6 foot 2, 100 kilo back rowers, a 6 foot 2, 100 kilo 5/8, 6 foot 2, 100 kilo Centres and, you guessed it 6 foot 2, 100 kilo wingers. And all of them are so talented that they can take on the rigours of any of those positions. RL is an amazingly complex game.