A team captain can change the name, description and visibility of the team by going to the "i" button at the bottom left of the main teamplay page.
In addition, the captain is the only one who can remove other players from the team, and he/she/they can also select another player to make him/her/them captain.
If the person who creates a team leaves it, it will continue to exist. In this case, the player can transfer the captain's position to another member of the team.