Wizard of Oz protagonist Dorothy captures the shock of her post-tornado world in the memorable line, “Toto, I’ve a feeling we’re not in Kansas anymore.” Ex-Apple retail wizard Ron Johnson, now CEO of JC Penney (JCP), must be saying “I’m not in Cupertino, California [Apple’s headquarters] anymore” as he discovers the challenges of transforming his new employer’s retail stores. The first head has already been chopped:  merchandising and marketing leader Michael Francis left JCP after less than a year on the job. We’ll now see if Johnson, who created the “shabby chic” value promise at Target and the stellar shopping and learning experience at Apple, has the chops to fix a troubled company in a category with excess supply. I thought Johnson had a great idea – reinvent the department store, which had offered wonderful shopping experiences when local high-end stores dominated the…