Salesforce's Tableau chief, Ryan Aytay, leaves after 19 years at the company, just two months after Slack CEO Denise Dresser left for OpenAI (Brody Ford/Bloomberg)

Brody Ford / Bloomberg: Salesforce's Tableau chief, Ryan Aytay, leaves after 19 years at the company, just two months after Slack CEO Denise Dresser left for OpenAI  —  The chief of Salesforce Inc.'s data visualization unit, Tableau, has left the company, raising some concerns on Wall Street about executive churn at the software maker.