This is the category scheme.

For date the team/organization was established use Category:Established in XXXX

For alumni of a college use Category:Duke Alumni not Category:Duke basketball players

For birth date use the category:Born in XXXX

For the team the player was drafted by use Category:XXXX draft picks

For the year the player was drafted use the Category Players drafted in XXXX

For the country the player was from use the Category XXXX basketball players

For articles relating to the American Basketball Association use the categories ABA or ABA teams for all articles

For the nba team the player is currenty playing for use the category XXXX players

For any former nba teams the player has played for use the category Former XXXX players