(Reuters) - J.C. Penney Co Inc
The department store operator, which is under pressure to improve its business quickly, did not say why Sweeney left Penney on September 20. He was appointed controller on September 5, 2012.
Miller, 60, currently oversees Penney's shared services center in Salt Lake City and was Penney's senior vice president and controller from June 3, 2008 until September 5, 2012.
Before joining Penney, Sweeney served as vice president and operational controller of General Electric Co
(Reporting by Jessica Wohl in Chicago; editing by Jim Marshall)