J.C. Penney CEO Marvin Ellison started day three of its annual store managers meeting on Wednesday talking about BS (business simplification). Just in case Penney store managers had any doubts about what they heard the day before, there was a bright red BS stamp covering old rules and titles of cumbersome reports on a screen behind Ellison. More than 1,000 managers from stores across the nation gathered this week at the conference in Dallas.