is there any way to change a team name?

is there?

No, we users cant change the team name. Leaders also cant.

If you feel that you absolutely must change the name of the team, then all you can do is start a new team, invite team members to it, and then close the old one.

Well the official answer is No You Can't but @AnonymousChessKing You forgot to tell that only for your ownself you can by:
https://i.imgur.com/1W62um7.png