WHAT'S CONFIRMED▸OpenAI's chief revenue officer Denise Dresser departed the company recently. — CNBC Tech, Axios▸Multiple top executives including longtime COO Brad Lightcap have left OpenAI. — CNBC Tech, Axios▸Talent exodus raises major concerns ahead of company's planned IPO. — CNBC Tech, AxiosNOT REPORTED ELSEWHERE▸CFO Sarah Friar told investors enterprise business now bigger than consumer by revenue. — CNBC Tech▸Number two executive Fidji Simo left after taking leave of absence for health reasons. — Axios▸Greg Brockman getting more involved across company to build leadership team. — Axios