Douglas Stone & Sheila Heen Sheila Heen Sheila is a Founder of Triad Consulting Group and a Lecturer on Law at Harvard Law School. Her husband teaches negotiation at MIT, and they are both schooled regularly in negotiation by their three kids. Learn More. Douglas Stone Doug is a Founder of Triad Consulting and a Lecturer on Law at Harvard Law School. He has also written screenplays, and is determined to play guitar better than his friends.Learn more.