"Well, you're obviously not allowed to block an opposing defender," coach Jason Garrett said. "That's something we tried to address with [the referees] before the game, and it came up a couple of times within the game."
The play on Carr was unsettling because the Broncos had a first-and-10 from the Cowboys' 24-yard line with 1:57 to play in the game. In a four-receiver setup, Peyton Manning targeted Carr toward the sideline and Moreno got in Carr's way, allowing Thomas some space to make a play on the ball.
"It's an offensive league," Carr said. "They're not calling it. It hurts, we fought hard, we practiced hard and we expected to win. We couldn't close it out."
The purpose of a pick play is to clear a receiver from tight coverage by getting a few steps from a defender. But the two defensive players have to communicate to make sure the receiver is covered.
"There are a lot of different ways you defend them," Garrett said. "You try to stay out of that double-bump look. Coming into the ballgame, that's something they do a really good job of, actually rubbing the defender and creating real open lane for a receiver. That happened a couple of times in the ballgame."