"Mr. Butterfield said the market is large enough for more than one provider, and that there are plenty of companies that don’t use Office 365.Messaging Service Slack Braces for Competition - WSJ
Microsoft agreed. “The goal is not to take away any success others have had,” a Microsoft spokeswoman said.
Some analysts say the market is Slack’s to lose. “Microsoft Teams put out a road map and they’re going to build out a lot of business partnerships, but right now this doesn’t take anything away from Slack,” said Mike Gotta, research vice president of Gartner Inc."
Monday, November 14, 2016
Messaging Service Slack Braces for Competition - WSJ
No question Slack is a leader for organizations that won't pay for software services