I just don't understand what Zacs' motivation is here.
If it is to get more involved, touch the ball more, as many have stated, his ability to get more involved in a game is greater on the wing than it is at centre.
If it is money, surely he see's that being an elite winger will likely earn him more money than being an average centre would.
If it is about representative play, it's a no brainer he has a much better chance as a winger than he does as a centre.
It also seems quite evident to me anyway, that he is just outright a better winger than he is a centre. He is more suited to the position. Only thing missing is high level speed really.