Vanessa Castagna, chairman and chief executive officer of JC Penney's stores, catalogue and Internet operations, has left the retailer after her employment contract expired on Sunday.

Castagna, who joined JC Penney in 1999, will be succeeded by Ken Hicks, the president and chief operating officer of JC Penney Stores and Merchandise Operations.

Hicks will take on the role in addition to his current duties.