Abstract Several colleagues and I remember Don Ifill, his conversations with us, and his tireless efforts to use simulation/gaming to help people and organizations interface honestly with their issues. KeywordschallengecollaborationdialogueDon Ifillserious gamingGet full access to this articleView all access options for this article.Get accessReferences1. Ifill, D. (1994). Taking gaming seriously: Not anymore. Simulation & Gaming, 25, 211-214.