Same for me too i have never had a good performing MC. I also took a Young Nordgen... who was MC i trained him to play MR and AMC. He will play well at MR and AMC 7/8 but if play MC back to 5/4. I have tried most tactics and formations to suit MC but still never perform not matter tactic,formation,morale,win bonus it just doesn't matter its a dead role!

I even put a different MC who had form of 4/5 etc in the AMC position even tho he is ONLY MC. he scored 2 and 7 rating in last game lol

so my solution...dont play with MC or just 1 minimum depending on players you have.

i believe everyteam will have a always negative postion in there team