Ecologist Jeffrey Stein assumes PRI interim executive director role Sep 10, 2020 3:15 pm by Tricia BarkerPrairie Research Institute Share on Facebook Tweet Email Images Dr. Jeffrey Stein has been named Interim Executive Director of the Prairie Research Institute at the University of Illinois at Urbana-Champaign. Stein, who currently serves as Assistant Director for Research, will assume the role on Oct. 1. Share on Facebook Tweet Email