Previous generations of players can't be compared to current generation players. Not ever.
The game constantly changes and one can argue back and forth wether it's improving or deceasing in quality. My personal opinion to this is that along with almost everything else in this world, we are getting better and better at whatever we do. And so, football is getting harder and harder to master, because, everyone in it; managers, players etc, are also getting better. Todays defenders will take on strikers (generally) better then ever before and vice versa. Maradona (or Baresi as referred here) dominated at their time, yet the opponents weren't the opponents of today.
Italian football is not getting worse then it has ever been - football out of Italy is just improving (mainly player abliities and manager tactics.)
The best teams during the prime 80-90s would not be as good as the best team as of recent time. Around here, you guys will never agree to this view but that could stem from the fact that many of you started following Juve when they were at the very top of the world. Messi just broke an 80 year old record - yeah right but back when the old record was set there was no such thing as mercurial boots, hybrid footballs or plain grass fields.