A theory, a thought that i heard from some friends is that they penalize(trolling) managers with mutant players to " nerf " or balance the things, i have a friend in the same situation , his team is insane ( mutants with 300+ stats) but he really struggle against normal/weak teams (mostly league ). I REPEAT This is just a theory, but a lot of poeple suffering like this and coincidence

they all have mutant teams... i think there is some truth in this