[Zelphyr]

Microsoft, when confronted with a problem, think "I know, I'll build it on top of SharePoint."

[reilly3000]

Every time, it seemed like it was going to be so easy and powerful. Each time, it turned out to be impossible to implement relatively vanilla functionality.

[AndrewOMartin]

If you think "I know, I'll use regular expressions" you now have two problems.

If you think "I know, I'll build it on top of SharePoint" the problem was inside you all along.

[mattgreenrocks]

Is Teams built atop SharePoint, or does it just integrate with it?

[twobitshifter]

Creating a new team makes a sharepoint group complete with calendars, a site, email addresses, and file folders.