The NFL is expanding the role of replay assistants in communicating with referees to fix missed calls.
NFL Competition Committee Chairman Rich McKay told Tom Pelissero of NFL Network that the replay assistant will now be permitted to correct certain types of incorrect calls for roughing the passer and intentional grounding.
https://www.nbcsports.com/nfl/profootballtalk/rumor-mill/news/nfl-will-let-replay-assistant-fix-mistakes-on-roughing-the-passer-intentional-grounding