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Tammy DiRenzo is the Corporate Quality Manager at Worthington Industries since February 1997. Tammy manages quality projects, liaises between COE and Quality, and develops improvement activities based on PPM trends, cost reductions, and continuous improvement. Tammy is also responsible for the creation, accuracy, and integrity of all new parts awarded to Worthington Steel for seven steel plants. Tammy DiRenzo has a degree from Northwest State, graduating between 1999-2002.