To three or to two, that is the question

Just here to share something I encountered last season (Level 4)

I had a scout MC, who went on to become world class the same season.

I played him with two 5* MCs in a motivated 4-5-1 or 3-5-2 formation.

One of the 5* MC outperformed him in almost every game. My WC MC simply refused to score or was unable to provide an assist. This went on for 3/4 of the season but I still stuck with him.

But as the season wore on, I began to play 4-4-2, 4-2-2-2, 3-1-4-2 or 3-4-3 formation. True enough, my WC MC performed brilliantly in every game, getting 8 assists in 8 matches, an improvement from 1 in 18.

I am quite surprised that the game engine has this kind of logic embedded in the game i.e playing style, number of partners in a position etc.

Is it just me, or is it quite common?