At the NFL annual meeting in Phoenix, Arizona, a 45-second clock was also approved to replace the 30-second clock. For a normal sequence of plays, the interval between plays was changed to 45 seconds from the time the ball is signaled dead until it is snapped on the succeeding play.
Since then its been changed to 40 seconds.
WHY? it turned the end of the game to the crappy kneel downs we have now. now that the nfl has gone to the hurry up why not go back to the 30 second rule and have some real action at the end of games?