When Bill Belichick was interviewed for the NFL Network special Do Your Job, he had to better explain the catchphrase that became the namesake for the documentary.
"Maybe the one word that isn't in that, that's implied, is do your job well," Belichick stated. "It could be enough to make the difference."
For Bill, a player doing their job isn't worthy of praise. It's a base expectation that every player must fulfill if they want to stay with the team. The players know it, and that's why they value the moments that Belichick tells them they made a good play- because the play must have been outstanding to receiver notice.