Yelling and swearing and acting like an idiot is no longer the way to motivate and inspire. The manager is no longer the "father figure" of a team.
many times the players are richer and more influental than the manager - hence they donŽt give respect to the manager or his authority. With authority you donŽt get too far with the new generation.. you have to be more "understanding" and "cooperative".
The clubs and managers got hard time controlling the players, cause the players are not dependend on them anymore. The players get paid regardless. Hence players are more dependend on their agents than the manager.. the players donŽt want to hear no s** anymore.