USA Basketball warned LeBron James prior to the 2008 Olympics that he would need to "grow up, treat people respect and commit to treating (it) seriously."

James and Kevin Durant were easily Team USA's best players throughout the Olympics. 

"LeBron James is a different player and a different person than he was in '06, and I say that with exclamation marks," said Jerry Colangelo. "He's matured incredibly as a person, player and leader."

James had 19 points, seven rebounds and four assists against Spain on Sunday.

"He's matured incredibly as a person, a player and a leader," Colangelo said. "He never had someone to emulate in his life, and (Mike Krzyzewski) fit into a great role. He did the rest himself. He's grown so much. So much."