Too Many Stars = No Trophies?

I know many of you wont agree with this but its somehow being proven slowly. Having a team of Superstars doesn't always get you the results that are expected. Take for example Real Madrid had a touted 'dream team', with the likes of Zidane, Figo, Ronaldo. Beckham, Raul, Carlos, Hierro, and a host more, but they didn't win the league for a long time. The moment some of them left, Real Madrid won the league last season. It happened in the recently concluded Copa America as well, Brazil playing with a relatively young and unknown team managed to upstage the giants, Argentina, to win the cup. Everyone who saw the Argentian team would agree that it was filled with superstars. Its not only soccer but it happens in all sports. Im not fully aware of the stats in Baseball and some other American games such as the NBA, NFL, MLB, etc, but I'm sure many will agree that it happens all the time and all everywhere.