[hackuser]

From TFA:

Belichick was also unhappy with the other communications systems at the game, like the ones between the press box and the sideline and between the coach and the quarterback. “Those fail on a regular basis,” he said.

He noted that the league does not supply the equipment to the teams until a few hours before the game, making troubleshooting difficult.

“So I would just say there are problems in every game,” he said. “There were problems last week, but there were problems the week before that, too. Some are worse than others. Sometimes both teams have them, sometimes one team has them and the other team doesn’t have them.”