As the comments on the article point out, this article makes many sweeping generalisations without much substantiation. It's not really worth replying in more detail other than saying that I believe he's dead wrong on most of his points.
Perhaps the author should not abandon his critique so early by opting to be a "manager" (as if that will be more fulfilling or unique!)
His mediocre job has a direct correlation to the business model, practices and market with in which the companies he is working for operate. The mentality that needs to be escaped is that of being just an employee. You need to start directing your mental energy towards refactoring the economy itself. Entirely new structures need to be developed, so get cracking.