If the team really cared, they'd correspond with the alumni. Especially the older ones. Just have them stay in touch, keep the team informed of any changes, etc. Unfortunately they do very little and I've spoken to players that notice. Some have traveled to NY and Citifield and got the ‘who are you?' treatment. I was the main guy involved in bringing Clarence Coleman back to NY and when he passed his family told me they called the Mets right away cause they felt like some of us do that these guys at the very least should be acknowledged by the fans that rooted for them while wearing the Mets uniform however long they stayed. I'm sure I'm in the minority but I'd make sure I acknowledged them. Guys like Hawk Taylor, Harry Parker and the aforementioned Danny Napoleon went quite a while before their deaths were noted. I know that's mostly on the family, some are very private, but communication wouldn't hurt.