According to Axios, OpenAI chief revenue officer Denise Dresser is leaving the company less than a year into the role, and the company has appointed Dali Rajic, most recently president and COO of Google-owned cybersecurity company Wiz, to replace her. The move comes as OpenAI retools its leadership ahead of an expected IPO, with co-founder Greg Brockman taking a more active role across the company. The same week, longtime OpenAI executive Brad Lightcap, the former COO, announced his departure, along with the head of ethics, the head of safety and the chief futurist. Fidji Simo, OpenAI's number two under CEO Sam Altman, left last month after taking a leave of absence for health reasons but remains an advisor. Axios also reported that OpenAI's safety and alignment teams have seen several departures, including head of ethics Chloé Bakalar, head of safety systems Johannes Heidecke, chief futurist and former head of mission alignment Joshua Achiam, and Sandhini Agarwal, who previously led AI safety teams.