<p>Nowadays leaders need a broader skill set to be effective. Being able to organize and manage people across multiple locations, with different cultural values and languages, is just one of their challenges. <br><br>To succeed in the leadership environment, you need more than what you have learned in college. <br><br>Be a leader, not a friend is about Tiago Mascarenha's experience managing one of the largest language schools in world for over te...