This was a bad fit from the beginning. Trying to overlay Apple's philosophy on JCP retail was doomed before it got off the ground. A large part of the success of Apple is their product focus. Market and sell a finite group of products and do it to the best of your ability. JCP has a ton of products across multiple categories. RJ couldn't focus on one group without neglecting the others.
Apple competes in a market with very few competitors. It's easier for them to differentiate. JCP sells the same things that can be had at any other retailer. Apple has cachet. JCP is... well, JCP. Close your eyes in JCP and you could be in Target, Walmart, Sears, or Kohls. Additionally, a ton of other mall retailers sell the same things.
Apples philosophy works for Apple because of what, and how, they sell. That philosophy is non-transferable IMHO. He should have known better