Many a time, leaders think that their success depends on a capable work force. How easy it is to blame a failure on the people reporting to you! Non-performers who get pink slips are often middle-level managers or employees in the lower rungs of the corporate ladder.
But we see a contrast in the Bible. Read Judges, and every chapter explains how a God-fearing leader brought victory and peace to the Israelites. Even when the Israelites ignored Jehovah and went after idols, God blessed them just because their leader loved Jehovah. In every chapter you can see that there was peace during the days of a judge, not because the people were perfect but because the leader was God-fearing. Battles were won on the same basis. Time and again, God considered the leader's faith more seriously than the sins of the people.
It is a lesson for all people aspiring to be leaders. Leaders should work with an honest and pure heart. If we do, God will give us the skills/wisdom to use even the weakest of our team members and guide them to victory.