since you are arsenal, you should still have 4 of the best central midfielders in the world, ramsey, wilshere, zalalem, and crowley. If you've trained Zelalem and Crowley well they can be just as good as wilshere and ramsey, and adding Will Hughes gives you too many versatile/attacking central midfielders.
I, like the guy above, use De Bruyne as an IF on the right or left side, so he doesnt cause the same problem that hughes does.