Slack, an Upstart in Messaging, Now Faces Giant Tech Rivals - The New York Times

Excerpt from a Slack reality check

"There is no illusion within Slack that success is certain. But Stewart Butterfield, the chief executive, said small tech companies with new ideas had long defeated larger rivals that tried to copy them. Think of Apple’s beating IBM in personal computing, Google’s beating Microsoft in search and Facebook’s crushing Google in social networks.

One advantage Slack does have is focus, Mr. Butterfield maintains. Microsoft, for example, has numerous Slack-like products including Yammer, SharePoint, Skype for Business and now Teams. The executives who run those businesses within Microsoft must “compete for budget and mind share and attention,” he said, providing an opening for Slack to gain users while Microsoft managers wage internal wars.

Microsoft said users would embrace Teams because it had strong encryption and global support and worked seamlessly with software they already used, like Excel. “We think customers value coherence,” said Bryan Goode, the general manager of Office 365 at Microsoft."

Slack, an Upstart in Messaging, Now Faces Giant Tech Rivals - The New York Times