So if I have 2 central midfielders, a 5-star player who regularly gets a rating of 5 or 6 and a 3-star player getting 7 or 8 regularly, does that actually mean the 3-star player is performing better and should be picked ahead of the 5-star player? Or is the rating somehow measuring how well they perform compared to how well they should perform?

Or is there some aspect of player ratings I just don't understand?

What I am thinking is if I have highly rated but under-performing players, I should sell them now and get value. Is that wrong?

thanks!