You want someone at the top of the management hierarchy. You can call that guy a CEO or not, but it’s the same job. You can take away private investment and have the workers own the means of production at that company, but it’s still the same job. You can flatten that hierarchy until it resembles the terrain of Kansas, but it’s still the same job. You can pay that guy only somewhat more than the median wage at the company, but it’s still the same job.
That is the rub with it. It assumes full employment. Capitalism produces a surplus, and because of it, people just plain don’t have to work very much to get all the basic needs met. Keynesianism was the liberal attempt at fixing this, basically by throwing their hands up and looking for ways to dig ditches to have them filled back in again. The leftist solution is to reduce working hours so you can focus on things that aren’t work, or just letting people not work altogether.
Keynesianism is the only thing that’s kept Capitalism going this long. The right is trying their hardest to dismantle it.