Edited sentence: During the Gretzky Era, the NHL had to change the rules regarding offsides due to the immense scoring potential of a key few player.It is absolutely crucial for the current league to limit the ever encroaching offsides rules.Offsides rules have the potential to change the entire complex of the game and thus must be watched closely.The offsides rules were intended to  decrease score and provide a more fair game.The scoring decreased tremendously thus creating more closely contested games, ultimately leading to increased fan enjoyment