Microsoft Teams looks very neat and I look forward to learning more about it. One immediate question, how is Microsoft pitching Microsoft Teams in relation to Yammer? When would you use one over another? I have seen @Paul Cannon answering a similar question but more information would be invaluable.
There were some great sessions at Microsoft Ignite that helped with this but now with Teams, it's not so clear. There is a lot of overlap in the Office 365 toolset already.