Categories Articles Slack CEO Stewart Butterfield says that Microsoft has been ‘surprisingly unsportsmanlike’ as a competitor (WORK, MSFT) Post author By crystalg Post date October 23, 2019 Business Insider Feedburner Tags Been, Butterfield, competitor, Microsoft, MSFT, Says, Slack, Stewart, Surprisingly, Unsportsmanlike, Work ← How a VC Wants to Be Pitched → Mindful Mornings: Third Of Americans Say Meditation Essential For ‘Perfect’ A.M. Routine