I'd like to suggest a feature that's probably most appropriate as a Supporter option, which is the option to be notified when former players are listed on the TL. The reason for this is that some managers tend to get somewhat attached to their players, particularly ones that they spent time training, and they may either want to one day reacquire a player (perhaps to allow them to retire on their team), or at least see what their present market value happens to be (for sentimental or research purposes).
This could either be as an automated message, a News item, or perhaps some other way. I think this would need to be an opt-in feature, sort of like the Supporter scoreboard at the top of the page, since not everyone would want to opt in. I do not think it would be so easy to make this an option on a player-by-player basis, but would need to be all former players or nothing.
This obviously wouldn't be a high-priority development issue for the game, but perhaps it's not too complicated to create...
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