https://www.theguardian.com/technology/2019/mar/14/facebook-chris-cox-chris-daniels-top-executives-depart

Chief product officer Chris Cox, who helped create news feed feature, and Chris Daniels, who heads WhatsApp, to depart

Two of Facebook’s top executives are leaving the company, it says. Facebook’s chief product officer, Chris Cox, and Chris Daniels, who heads the messaging app WhatsApp, are departing. It isn’t clear what future plans the executives have.