You see this in construction - the capital is used for certain things and is operated by labour.
Eventually (maybe taking a lot longer than a lot of people expect and/or are hoping for) we'll achieve full human-equivalent AI, at which point you won't NEED a centaur approach - the mechanical horse will be capable of doing ALL non-physical work by itself, but that doesn't mean this is how this will actually play out. If we do end up heading for some dystopian "Soylent Green" type future where most humans are unemployed, surviving poorly on government handouts, then I expect there would eventually be riots and uprising that would push back against it. It also just doesn't work - you can't create profits without customers, and customers need money to buy what you're selling.
Part of why we may (and hopefully will) continue to see humans, from CEO on down, still working when they could be replaced with AI, is that even "AGI", which we've yet to achieve, doesn't mean human-like - it's really just focusing on intelligence. Creating an actual remote-worker replacement requires more than just automating the intelligent decision-making part of a human (the "AGI" part) - it also requires the human/social/emotional part, which will take longer, and there may not even be any desire to push for that. I think people maybe discount how much of being a successful member of a team is based around human soft skills, our ability to understand and interact with each other, not just raw intellectual capacity, and certainly at this point in time corporate success is still very much "who you know, not what you know".