Is there a CEO in DAO?

I'm curious, could you elaborate on the concept of a CEO in the context of a Decentralized Autonomous Organization, or DAO? In traditional corporate structures, a CEO plays a pivotal role in guiding the organization's strategy and overseeing daily operations. However, given the decentralized and autonomous nature of a DAO, does the traditional notion of a CEO still apply? Are there any individuals or entities that serve a similar function within a DAO, or does the decision-making process fundamentally differ?