In late March, representatives from all 32 NFL teams will gather in Phoenix for the annual league meeting. Among the topics that will be discussed during this important four-day conference will be potential changes to the rules of the game.
The NFL's rulebook is constantly evolving, often in small ways but occasionally in a manner that impacts game strategy significantly. In 2013, for instance, the NFL outlawed peel-back blocks at any spot on the field, whereas before they were only illegal outside the tackle box. In 2014, the league added the recovery of a loose ball to the list of actions that can be reviewed by replay.