If the NFL ever goes to full-time officials, as some believe should be done to lessen the number of disputed or incorrect calls, what would the officials do all week? Possibly review game tapes. The sport just doesn’t offer as many opportunities to see game action as baseball and basketball do, and there's really no way of getting around that.

BRIAN BLANCO/AP
NFL referee Ed Hochuli during an NFL football game between the Tampa Bay Buccaneers and the Atlanta Falcons, Nov. 17, 2013, in Tampa, Fla.