Activision is its own gaming company with Rob Kostich as president
Blizzard is its own gaming company with Jen Oneal och Mike Ybarra as president.
Rob cant tell Jen and Mike at Blizzard what to do.
Jen and Mike cant tell Rob at Activision what to do.
Activion Blizzard is the holding company not a gaming company that holds the majority of shares in Blizzard and Acitivsion and President for the holding company is Robert Kotick, but both gaming companies is run as its own company.