Leaders today need to be mindful of their circumstances as well as mindful of their own strengths and shortcomings. They need to have the disposition to succeed as well as the inner resourcefulness to persevere. Leaders must be willing to do things differently but also draw on tried and true traits, such as courage and gumption. Moxie is a concept that the modern leader is wise to adopt--one part courage, one part can-do spirit, and one part recognition...