I was reading an interview Pierce recently gave, he spoke about many things. But when the subject of his one year in Brooklyn came up, he held nothing back. He spoke about how uninterested the Nets team were in general about getting better. How he and KG had to push them to take practice and winning seriously. He spoke of a lack of desire and hunger that the team had towards the dedication needed to compete for a championship.
This is something I suspected about some players in the NBA. Many NBA teams have some "big names" that simply do not give effort enough to consistently win. Some of these incredibly high paid athletes go through the motions and look for "theirs" and not worry about what the team needs to succeed. He said his time in Brooklyn was terrible. (Why KG stayed I have no idea.)
We're lucky to have a Celtic team that "gets after it" like they do. It's a characteristic that is catchy.
Character does count, it's not only about getting "stars."