The strongest crisis that affected the United States after 1929 confirms what is already known, from the times of Keynes. Financial markets tend to overreact to good or bad news, amplifying the signals that lead to excessive volatility of asset prices. Thus, the financial markets are highly unstable dynamical systems in which securities are valuated in an irrational way. Today we face a new process of high amplitude, generated by the crisis triggered in the U.S. and strongly affecting the world economy. This paper presents the new dimensions of management in the framework of the strategic, tactical and operational economic crisis and shows how the workforce should be lead in a period of crisis. The uncertain and turbulent organizational environments, specific to economic crisis, involve new approaches of management instruments in order to achieve efficiency and effectiveness.