A good general needs know and understand what he needs to know in order to be skilled in the practical aspects of warfare. He also knows how to apply this in the battlefield to win his battles. If he does not know all of this, he will be defeated.
A leader who understands what it takes to be successful and applies that knowledge in practice will achieve success in the marketplace. Those who lack this understanding and do not put it into practice will fail.
To be successful in the marketplace, a leader must have a thorough understanding of effective leadership and the ability to put that knowledge into practice. This means having a clear understanding of the principles of good leadership and the skills and strategies needed to succeed as a leader. It also means being able to apply that knowledge in a practical and effective manner.