MC s not providing assist

[nikolgiorgos]

If you are playing with 2 mc give corner ability to one and free kick ability to the other.

no, don't do that.
Set for f-k and c-k your AML/C/R so to earn better stats and more "man of the match" points so to keep them for many seasons.
Those are the "key" players. MCs never been key players unless you give extra positions like DMC-MC-AMC so this player is worthy to keep him for extra time.
Good-Very good-Superb-On fire morale are all the same. Have no special effect in the game play.