Yet,he wasn't that huge difference for us.Yes he was good,but i liked Tacchinardi's work before him,Alessio should have just continued.
Emerson was much better then Tacchinardi, and I never liked Emerson (nothing to do with his performances).
And you talking about failing Brasilians, thats because we havent bought much of good brasilians, actually we generally avoided brasilians alot.
Ahirson was the typical random fringe flop signing, Diego quality, struggled and not given a proper chance with a 2nd season. Melo is getting that and will prove he is good enough. Amauri is simply an average player who deceived us all to hope for more basically. Emerson was word class DM, one of the top few best in the bussiness. And thats where our list ends, besides Cesar who I barely saw except Europe game as a kid, but he was apparently just a solid squad player.
So yeah, weird question to ask yourself, wondering why brasilians fail, you should ask yourself first the quality of the players and wether they are good enough or not. Brasilians dominated Italian league football long enough, obviously our choice of players is the issue.