I'm pretty sure you all know this, too.
Spain, who is considered the second-best team in the Olympics, had a starting five of Jose Calderon, Rudy Fernandez, Fernando San Emeterio, Pau Gasol and Marc Gasol. While four of those five players are in the NBA and the Gasol brothers are dominant big men, Spain definitely doesn't have the same amount of talent as team USA.
Kevin Durant, Kobe Bryant, LeBron James, Tyson Chandler and Chris Paul started the USA-Nigeria game. However, the halftime score was 78-45, so James, Durant, Chandler and Bryant rested during the second half.
And the Americans still dominated, outscoring Nigeria 78-28.
Team USA has seven reserves, and they are all elite players. Anthony came off the bench to score 37, but he didn't play the last quarter-and-a-half. Andre Iguodala, Anthony Davis, Kevin Love, Russell Westbrook, Deron Williams and James Harden were the other players to come off the bench, and they all dominated.
Davis is a great rebounder and shot-blocker, Harden is a prolific scorer, Love is a great three-point shooter and rebounder, Paul and Williams are terrific passers, Iguodala is a great defender and Westbrook is a prolific, athletic scorer. All seven bring something that's essential in Team USA's success, which means that there's never a bad lineup on the floor.
If you don't believe me, just ask Nigeria. They saw all the threes, dunks, blocks, layups, assists, jumpers and steals.