Too many cooks spoil the broth. When the chips are down Farah will be chip and chasing for himself, so will Hayne, so will Soward, so will Mullen, so will Gidley (well, grubber for Gids). For Farah to work he needs to be the spearhead of our attack, which he should not be imo. Or for him to change his game, which I don't think will work.
Dean Young brings reliable defence and service out of dummy half, can cover the back row and is actually tough and passionate. Those traits, which somehow the selectors saw in him, were the reasons Ennis was picked so I think the selectors will go with Dean.
Gidley can come off the bench and add some spark like he did in Game 3 last year, allows us to carry an extra prop on the bench if need be also.
Michael Ennis is the greatest myth in rugby league today. How he gets talked up as tough is beyond me, even Creagh is tougher than Ennis.