In addition to what Pace Ros says above, personally often I find (especially new) players sometimes to play poorly regardless of quality and is a matter of easing them back into the first 11 when they go through a bad patch of form, got an easy league game? then start your poor performing players from there or introduce as a sub later on (<--- this applies more to ST and MC as they will be creating and scoring the goals) maybe a change of formation could help I also notice you have a player playing in a position he is not familiar in, this could also affect the team overall. Of course this has just been my experience though and you have may have already tried the points mentioned in my post and if so won't be of much help