This was a 3rd-and-10. First, notice the even front with Chris Jones aligned to the field side:
Chiefs Defensive Coordinator Steve Spagnuolo knew this would likely lead to the Dolphins sliding their protection towards Jones. In this 6-man protection with the back staying in, that would mean a 3-man slide from the center to the right tackle and then man-to-man blocking on the two down linemen to the left. The running back’s first read would be the linebacker over him if he rushed:
