The ability of retailers to capture large amounts of data on their customers both in store and online are changing the retail industry. For years, retailers were run by merchant intuition regarding what consumers actually wanted. Now, with smartphone and tablet shopping on the rise, and Amazon dominating, planning inventory based on intuition is basically a surefire ticket to zillions of 50% off signs for a retailer. Walmart and Target have relatively new teams in Silicon Valley focusing on big data initiatives. One retailer surprisingly lacking big data capabilities and struggling because of it is Lululemon. TheStreet's Retail Contributor Brian Sozzi shares everything you need to know on what Lululemon is missing.