Transfer users from one team to another
You can transfer members from one team to another within your account by first adding them to the new team and deactivating them from the old one.
Visit the Team page for the team you would like the person to be transferred to, click the “Add team members" button, and then "Add existing team members." Select the person you want to move from the resulting list.
Then visit the old team’s Team page, click the "...” menu next to the transferred person, and deactivate them from the team.