From their results from previous acquisitions, I don't understand what they think they would get by purchasing Slack (unless it is a purely defensive move against Slack developing an in-house document collaboration service, Office 365/Google Docs style).
Bringing document collaboration side-by-side with team communication could have a positive effect on productivity, and Slack could roll it into the per user pricing they already have.
https://www.microsoft.com/investor/Stock/AcquisitonHistory/A... (warning, asked for an MS Login first)
From their results from previous acquisitions, I don't understand what they think they would get by purchasing Slack (unless it is a purely defensive move against Slack developing an in-house document collaboration service, Office 365/Google Docs style).