** FILE ** In this Feb. 6, 2011, file photo, NFL commissioner Roger Goodell greets game officials before the Super Bowl XLV football game in Arlington, Texas. The NFL's regular officiating crews are back. (AP Photo/Marcio Jose Sanchez, File)

Photo by: Marcio Jose Sanchez

** FILE ** In this Feb. 6, 2011, file photo, NFL commissioner Roger Goodell greets game officials before the Super Bowl XLV football game in Arlington, Texas. The NFL's regular officiating crews are back. (AP Photo/Marcio Jose Sanchez, File)