Tony Frontier and Paul Mielke are the authors of Making Teachers Better, Not Bitter: Balancing Evaluation, Supervision, and Reflection for Professional Growth
(ASCD). Frontier is a consultant, award-winning educator, and assistant professor of leadership studies at Cardinal Stritch University in Milwaukee, Wisconsin. Mielke is superintendent of the Hamilton School District in Sussex, Wisconsin. Rob Pennington is a middle school social studies teacher & lead tech coach in Connecticut, and ASCD Emerging Leader.