mcdonry said:he can progress past 85. I think that when it says he is 79/85 it means his best form will put him at 85 but if he develops which he will he will go past 85.
It means Messi is playing out of his preferred position in that game. Put him in his pref pos and he'll be an 85 overall.
Also:
http://www.youtube.com/watch?v=-UFiVMA5sOE