JC Penney just recently fired its CEO, Ron Johnson, whom it had hired less than a year and a half ago. He had grand plans to remake the JC Penney brand and store model. It's hard to know if the transformation would have ultimately worked, but in the minds of many analysts and shareholders it was taking too long. In the meantime, sales results were pretty bad.
I think he may have underestimated how long it would take to move to the newer way of doing things. Based on what I've read, the stores that had been made over (or the sections of the stores that had been made over) were doing quite well. The idea was to make the stores kind of like malls in themselves with lots of stores within the stores - distinct sections selling, e.g., particular brands. They also intended to have large aisles with places to sit and other things (e.g. perhaps food) akin to what you'd find in a mall.
I think he also underestimated the degree to which many people (particularly JC Penney's existing customers) are hooked on the perception of value. He wanted to switch to a more transparent, more consistent pricing model - everyday low prices. Instead of pricing, e.g., a piece of clothing at the ridiculous price of $50 and constantly having promotions and sales that make the real price $20, he wanted to price it at $20 (or perhaps $25) to begin with. But in retail, the perception of value is sometimes more important than value itself. People like the feeling that they're getting a deal on something, whether they are or not. That sensation of getting a deal is part of what people are paying for, it's part of the retail product. Conditioning JC Penney customers to be just as happy with a decent price when it wasn't disguised as some special, limited-time, deal, or in the alternative bringing in enough new customers interested in the new straight forward pricing policies to make up for those that were lost, wasn't working well enough or fast enough.
For now I would guess the future of the JC Penney model is in a bit of limbo. New leadership has to decide which direction to go. Some modified version of Mr. Johnson's vision? Back to what they had been before? Something else? It isn't clear yet where the company will go from here, but I think a far bit of damage has been done to the brand. If it tries to go back to where it was pre-Johnson, it may find that some of those people that were lost in the now-aborted transformation aren't quick to come back.