According to reports in the Wall Street Journal, Avon may be considering the sale of its North American business. Stating that while no deal for the beleaguered unit is “imminent,” the newspaper cited sources who said a strategic review “indicates that Avon thinks improving its performance could take a major overhaul as opposed to more run of the mill fix-it efforts.”   Last week, Avon announced that it would delay its investor meeting until the Fall.   In a letter to investors, the company said...