See the problem:
(145162.1).
Solution: Separate current team's HoF selections from the selections of the previous team(s). Add a menu on the Hall of Fame page that lets you see the HoF members and retired numbers of the previous team(s). By default, you will be shown the information for the current team. This way the organization's history is preserved without affecting the identity of the current team and the fun factor for the current user.