“The way most teams are using 12 personnel, it’s really 11,” Belichick said. “The second tight end is much more of a receiver than blocker. It’s a different version of 11. When they go to 11, it’s really 10. Teams with good tight ends, they put a second tight end in the game, but that really lets their tight end became a receiver. Then when they go to three receivers and a tight end it’s more like they have four receivers. Whether your third receiver is a receiver or a Gates or Keller or Gonzalez or Heap, they’re as hard to match up on as a third receiver. If they can block competitively at all, you are a more balanced offense than you are putting a 190 pound receiver on the field.”