Related: when Marxism was actually implemented, they had big problems with not building the right things, and building the things they did build poorly. For example a factory was assigned the task of building N pounds of nails a day, so they just built one giant nail that weighed N pounds (and was totally useless) rather than buliding what was needed. Because it turns out, management is actually needed and useful.
[And so are price signals, but let's take baby steps here!]
this is so wrong. management is labor, too.
In the Marxist view, the work just inherently "happens" (like water flowing down a stream) and capitalists can only be like a water wheel "capturing the value" that's flowing past. Of course, this is bullshit, but that is the mentality.
I am a capitalist and my money goes to pay labor to create a thing that I sell in a market. The workers create thing in the production process. I have captured a portion of the labor's true value based on the market, bringing me profit - what Marx called "surplus value."
I turn around and reinvest that profit into another business that brings me more profit. Rinse and repeat, forever.
But that profit is nothing but a portion of the labor's true value as reflected in the market price, and therefore the labor created the value. The market did not create the value. The market decided on a price to pay for the value created by the labor.
Much like "machines all the way down", value is labor all the way down.