HOUSTON, TX - OCTOBER 02: Head coach Bill O'Brien of the Houston Texans has words with line judge Tony Veteri #36 after the play clock expired late in the second quarter aTennessee Titans at NRG Stadium on October 2, 2016 in Houston, Texas. (Photo by Bob Levey/Getty Images)
HOUSTON, TX - OCTOBER 02: The officials discuss a penalty in the fourth quarter diuring a football game between the Tennessee Titans and the Houston Texans at NRG Stadium on October 2, 2016 in Houston, Texas. (Photo by Bob Levey/Getty Images)
SANTA CLARA, CA - OCTOBER 02: Head coach Jason Garrett of the Dallas Cowboys confers with officials during the first half against the San Francisco 49ers at Levi's Stadium on October 2, 2016 in Santa Clara, California. (Photo by Ezra Shaw/Getty Images)
02 OCT 2016: Buccaneers Head Coach Dirk Koetter has a few questions for the referee during the regular season game between the Denver Broncos and the Tampa Bay Buccaneers at Raymond James Stadium in Tampa, Florida. (Photo by Cliff Welch/Icon Sportswire via Getty Images)
02 October 2016: Buffalo Bills head coach Rex Ryan appeals a play to the referee. The Buffalo Bills defeated the New England Patriots 16-0 in a regular season NFL game at Gillette Stadium in Foxborough, Massachusetts. (Photo by Fred Kfoury III/Icon Sportswire via Getty Images)
