Football fans, by nature, are sentimental beings. Historians of the game like to reflect on or compare past teams to those of the present and understandably so. Learning from past triumphs and mistakes can educate a player, a team and even a fanbase for the future.
The practice of looking back is common for a lot of football spectators, including Jacksonville Jaguars fans looking (for whatever reason) to reflect on recent squads. Some fans find it interesting to see familiar faces on the opposing sidelines during games at EverBank Field because they remember that player for good (or mostly bad) reasons.