 Holtschneider was the Director/Rector of Vincentian College Seminary in Ozone Park, New York from 1989 to 1992.Since 2008, he has been a faculty member in the Harvard Graduate School of Education, teaching seminars and institutes on strategy, governance and management development, among others.He taught summer institutes on strategic planning at the Villanova University Center for the Study of Church Management from 2006-10.