The current hierarchical model is slowing the good progress of companies and, to support this statement, I will stick to the evidence, through two different sources, one Japanese-Dutch, the iceberg of ignorance, and the other English, the cost of silence.
The iceberg of ignorance
In 1989, a consultant, Sydney Yoshida, carried out a study (reported in a Corporate Rebels post), for Casonic, a Japanese car company, and found that the real problems of the production lines, known by 100% of the operators, are captured by 74% of the team leaders, but only by 9% of the intermediate managers and by a scant 4% of the executive directors, who end up making the budgetary and investment decisions of the production chain. This surprising phenomenon of isolation and impoverishment of organizations was called the iceberg of ignorance.