This story was originally published on Retail Dive. To receive daily news and insights, subscribe to our free daily Retail Dive newsletter. Dive Brief: Just days after Lululemon announced CEO Calvin McDonald would step down, Elliott Investment Management has acquired a more than $1 billion stake in the company and is pushing for former Ralph Lauren executive Jane Nielsen to become CEO of the activewear brand, according to a person familiar with the matter. Nielsen served as Ralph Lauren’s chief operat ...