Im gonna try a experiment with players that are non Key players, but contributive ones with variable performance, like 7-8-7-9-7... so, the idea is that after a "7" the next match the game should select them again to perform in a more decisive way, so, I will keep few players as subs' next 2 matches and, in the Cup round I'll try to set them again in the 11 to do the experiment.