“Lessons From the Best and Worst Team Experiences: How a Teacher Can Make the Difference”—that’s the title of a 1999 article by Donald R. Bacon, Kim A. Steward, and William S. Silver that was published in the Journal of Management Education. It’s a fine piece of research with a title that makes you want to read it. Since publication it has become one of the most widely cited articles on group work in the now voluminous literature on the topic. After 20 years, new articles still reference it. Last year the Journal of Management Education appropriately selected it for the 2019 Lasting Impact Award.