The faculty are world-renowned practitioners and researchers who use their experience to bring to life leadership lessons and challenges as they orchestrate a case discussion. Professors invest in becoming great teachers with extensive training, feedback on their teaching, and resources from the Christensen Center for Teaching and Learning. In fact, teaching is so critical at Harvard Business School that it is a core part of the tenure process. Professors invest in relationships with students outside of class as well, through office hours and advising students on start-up ideas and career goals.