The Teams link in the top navigation allows users to create and name groups of users (or groups of teams) often used on projects.
Click on the Teams link to view all teams you are associated within the Teams dashboard. The drop down allows you to filter by "Active Teams", "Owned Teams", and "Archived Teams." "Active Teams" means teams you are a member of; "Owned Teams" means teams you own; and "Archived Teams" means just that.
To create a new team, click on the "Add Team" button. Provide a name for the team that its members will recognize. Keep in mind that teams may be used over and over again across current and future projects, so the name assigned should be functional, versus project specific. Example team names may be by business function (i.e. marketing, finance, legal, etc.) or categorical (i.e. power users, retail and brand, design, etc.)
Once named, you can add users/members to the Team by entering a list of email addresses, user names, team names, or a list of comma-separated email addresses.
You can add or delete members of a team at any time by clicking on "Teams" at the top, and then clicking on the team name within the Teams dashboard.