If thats the case, great, we don't need to fear the mutants so much anymore with our traditional strength teams.
I also have another idea to counter them, most mutant teams have very strong strikers but only have traditional defences, we should put "Hard Attacking" with Pressing to render their forwards ineffective as they will then have little chance to touch the ball and utilise their out of the world mutant skill sets.
Also put Man to Man defence to improve the defence against these mutant strikers.