Barry captained England last week against Ghana.
But Barton told So Foot: "Did you see the game against Germany at the World Cup?
"If you watch the fourth goal, when [Mesut] Ozil was up against Barry, it was like the hare and the tortoise.
"Barry's got a very good agent," Barton indicated as the reason for the player's success. "He's also discreet and always agrees with the manager. He's like the guy who sits in the front row and listens to the teacher. I certainly don't lose any sleep when I play against him."