i rather play my best player in their best posotion. dont change or worry but your formation to much stick with the best let your opp worry bout you.
i dont really rely on what formation my opp play i stick with my best formation 451v every game and change only when needed in match i watch. if you watch your game you know when and how to change it (you formation, player or order). it wont gurentee sucess bt at least you try sometime you win sometime you lose. that is how i enjoy my game in the end i have only myself to blame if i lose and enjoy the moment if i win.