David Baszucki was the founder and CEO of Roblox, so there wasn’t a person “before” him in the CEO role to point to as a predecessor on the company’s main leadership page. Roblox’s current leadership coverage identifies him as the co-founder and CEO, not as someone who took over from a previous CEO. If you meant the person who led Roblox before it became the platform we know today, that would be not a CEO predecessor but the co-founder setup itself : Baszucki helped create the company and has remained its public face as CEO.