I change players around into different formations too, as I do look at opponents formation, so think he might do the same.

Have been caught out twice...
first time I couldnt get home intime for the match, but won 3-1 with a 5 star striker playing in DMC and 2 AML/R in ML/R.

second time was CL semi's (wednesday?)..logged in on 88mins, just intime to see opponent score to make it 1-2 to him on the night (I won first leg 2-1 so went to extra time~) managed to sort formation out and won