Fyfe for 3 GWS? That's a farm foreclosure. And you'd have to make it 4, because McCarthy is a freebie.
Even the, probably no. When fit, Fyfe is one of the 2 best players in the comp, and makes every other team play 2 on him, just to limit the damage he does. Not seen any of the 3 mentioned come close to doing that.
Besides, when you're sacking most of your midfield, and BondChrisBond is in charge of restocking, keeping the best mid/forward in the game could be useful. Add to that, Lyon seems to struggle to change game plans with players he already knows inside out. Give him 5 brand spankers and he may well just spontaneously combust.