Wasn't he the CEO in the past? I see him referred to as "CEO" in some places, like [1], but I can't find any announcement or news article about when this change

Wasn't he the CEO in the past? I see him referred to as "CEO" in some places, like [1], but I can't find any announcement or news article about when this changed. 1: https://techcrunch.com/2020/03/16/yc-ceo-michael-seibel-opens-up-about-his-accelerators-first-online-only-demo-day/ https://techcrunch.com/2020/03/16/yc-ceo-michael-seibel-open...