Guys, It's not exclusively about the stats or the entire formation. (I have already given the big picture.)
I have played hundreds of matches and tried every combination, so I can understand pretty well what goes wrong, if I lose.
It's only these last days that I noticed something odd happening.
I just want to know if I'm just very unlucky or if the developers have weakened the 3-man-defense.

So, I'm just asking you if you have noticed 3-man-defences concede more goals than normally??
Just a survey, nothing more, nothing less.