Whatever the challenge at your organization—improving customer service, coping with change, inspiring transformation, improving corporate culture, recruiting and retaining great talent, building teamwork, fostering innovation—it all comes down to this: someone has to do something significant and enlist others to help. Someone, in other words, has to lead. And it doesn’t have to be the boss. Leadership, ultimately, has nothing to do with the title on your business card or your position on the organizational chart. It’s about who you are and what you do to change things for the better—regardless of your “place” in the company.