Management has evolved mainly in terms of what is an acceptable management style. Where managers were previously able to use their authority to force employees to comply, current managers have to lead by example, demonstrating the values they want their employees to have.
The initial impetus for changing management was investment. While managers usually ran their own companies and managed their own employees, investment required managers to have duties toward other people's money. This shift led to scientific management.
Scientific management required companies to analyze how employees worked and what was efficient. This analysis of the efficiency of management led to teaching management skills rather than assuming that management was an innate ability.
Management later developed into the idea of "servant leadership." Servant leadership viewed a manager not just as a leader, but also as someone who served those who were managed. This management theory builds trust between managers and those who are managed.
The modern approach to management focuses on big data. Companies now use data to understand how the company is doing, and what individual employees need to do to move the company in the right direction. Studies show that the modern worker is not happy with current management styles, and that current managers are unable to identify the direction in which the company wants to go. Therefore, the big data model has flaws.