In NBA, there are always having the winning record for the coach (aka manager in BB), just like Popovich and Phil Jackson.
Shall we have similar stats? Like, "congrats to GM-Manon for the 500th game victory." or "Excellent record for EGM-Perpete as he managed to win 18 games in the past 20 games", etc...
All these information could be shown in "Achievement page".
As for the players, if that player scores 5000 points (3000 rebounds or something honourable) for the same team, such information could be included in the "player history" page.