"I think our officials do an extraordinary job," Goodell said. "I think what we see now through technology is we see things we could never see before. But I think what it does is it validates the quality of our officiating. We all recognize that officials are going to make mistakes. What we need to do is try to avoid those mistakes as much as possible, train them differently and improve the quality of the officiating and use technology to help them when a mistake does occur."