Since the introduction of Smart Groups in Zunos we have been working to bring this functionality to all areas of the platform.
This means that all references to Teams have been removed and replaced with Smart Groups.
All of your existing Teams have been converted to Smart Groups and will still work they way they always did, however now they are called Smart Groups instead of Teams.
You can still create the equivalent of Teams by using the new Smart Groups feature, click here for a quick tutorial on how to do this.
To learn more about creating Smart Groups in general, please check out this article.