US department store operator JC Penney has made a series of new appointments and promotions across its merchandising and operations departments as part of ongoing plans to overhaul its business.

Under the latest changes, John Tighe, SVP and former general merchandise manager of the company's home division, has been promoted to general merchandise manager of its men's division. He will lead the team responsible for enhancing the retailer's men's wear assortment.

In addition, Preston Moxcey joins JC Penney as divisional merchandise manager for men's clothing and accessories. Moxcey most recently served as national merchandise manager for men's furnishings and accessories at retailer Nordstrom.

Meanwhile, Bob Peterson has been appointed to the newly-created role of SVP of operational strategy. Peterson will be responsible for identifying and evaluating key business opportunities and strategic alliances.

In another move, Thorsten Weber has been promoted to SVP of merchandising planning and allocation and will continue to lead the company's merchandising planning and allocation.

And Vaneet Grover joins the retailer from fashion firm Tandy Brands as its new SVP of procurement. Prior to this, Grover served as SVP of supply chain for fashion firm Tandy Brands.

"We're rethinking every element of the retail business and there's no better way to re-imagine the possibilities than to tap the proven abilities of our own extraordinary talent along with the fresh perspectives offered by industry experts new to our organisation," said JC Penney CEO Ron Johnson.

So far this year the retailer has also promoted Liz Sweney as chief merchant leading the overhaul of its apparel portfolio, and tapped former Neiman Marcus and Bergdorf Goodman fashion director Nick Wooster as its men's wear head.