General Norman Schawarzkopf is a decorated American hero. Three months before his retirement from the army, he made a speech to the corps of cadets at West Point. He said, "To be a twenty-first century leader, you must have two things: competence and character." He's right. One without the other is a sure road to disaster.
In the Bible, Daniel had both character and competence. He would have made a great leader in any century. When the pressure was on, his core convictions kept him from compromising with the culture.
Competence is something you can gain over time with hard work. But character is who you are when nobody is looking.