Nordstrom (NYSE: JWN) shares have been pummeled since peaking at more than $80 in early 2015. In the past two years, sales growth has slowed and profit margins have come under pressure, causing investors to lose confidence in the company's ongoing strategy.In this segment from Industry Focus: Consumer Goods, Vincent Shen recruits senior Fool.com contributor Adam Levine-Weinberg to discuss two potential reasons why the Nordstrom family is thinking about taking the company private.