Professor Lehman studies basic questions related to organization theory. One stream of his research focuses on organizational learning, with an emphasis on understanding how risk, routines, and rules impact organizational decision-making over time. The other stream focuses on organizational authenticity, with an emphasis on understanding how audiences respond to firms, things, and people seen as real. He has conducted research in a variety of domains, including sports, food and dining, healthcare, pipeline and hazardous materials, and global exporting.

Professor Lehman teaches undergraduate and graduate courses on organizational behavior, leading teams, and decision-making. He previously received the All-University Teaching Award.

Prior to joining the University of Virginia, Professor Lehman served on the faculty at the National University of Singapore. He worked in the pharmaceutical and telecommunications industries before starting his academic career.