After graduating from Michigan, Dietz received a Juris Doctor degree from
Thomas M. Cooley Law School in
Lansing, Michigan. She began her professional career as a lawyer working for law firms Paskin, Nagi & Baxter P.C. in
Troy, Michigan, and Howard & Howard Attorneys, P.C., in
Bloomfield Hills, Michigan. After leaving the private practice of law, Dietz worked for many years in the cable television industry. She began in the business as Vice President of Corporate and Legal Affairs for
Continental Cablevision's Midwest Region. She joined
Comcast Corporation in 1996. At Comcast, she served as the Vice President of Corporate Affairs for the Midwest Division. In 2005, Dietz relocated to Philadelphia upon being promoted to a position as Comcast's Senior Director of Public Affairs and Vice President of The Comcast Foundation. Dietz has also served as a board member for the Detroit Metro Convention and Visitors Bureau, United Way of Southeast Pennsylvania, Michigan Cable & Telecommunications Association, and the University of Michigan Alumni Association. In October 2008, Dietz was named chief marketing officer for
Cranbrook Educational Community, a collection of private schools and educational instiutitions in
Bloomfield Hills, Michigan. In her position at Cranbrook, Dietz oversees marketing and communication efforts, community outreach and government relations. In March 2010, she was hired as the
Big Ten Conference Chief Communications Officer. ==Honors and awards==