It seems, for whatever reason, central midfield is the hardest posiion to get good ratings from. It's certainly true in my case, and I've seen a lot of people state this too. My defenders get high ratings, my forwards get high ratings, and attacking midfielders. Also defensive midfield for me are a battle. When my defensive midfielders get 7s I'm happy. I got a great defensive midfielder on the transfer market the start of last season, he plays left right and centre. So far this season he's had one 8 and the rest 7's. Given that its been so hard to fill his role, I'm delighted I got him. He's my third favourite player(behind the big two, my 1st signings in season 1)

My central midfielders have wild form. One match 8, the next 5, etc. Tho this season I got a scout who so far has had three 8's, three 7's, 3 goals from 6 matches, and a MoM.