Thank you for the link. It is a lengthy watch, but I shall get to it sometime in the next couple of weeks.
My understanding is that Marx really didn't have another system in mind after his "Workers' Revolution" happened. But things have been added to his ideas (like Marxism-Leninism), trying to tag on his brand name. But I could be wrong.
Many of the working people I associate with really don't have an understanding of commerce or have a professional work ethic. They tend to bad-mouth both management and co-workers a lot. This mentality will not work well in a worker's co-op.
But having said that, we can be trained to think and work in new ways. About a year ago, a Medium contributor introduced me to a concept called "Sociocracy." I think I need to spend more time with https://www.sociocracyforall.org/ than on Medium.