NEW YORK (AdAge.com) -- In the 47-year timeline of Wal-Mart's history, few years can match 2006 for marketing chaos. In January of that year, Julie Roehm, an edgy Chrysler marketing executive, became Wal-Mart's SVP of marketing communications only to be dismissed twelve months later. Wal-Mart named Stephen Quinn the new CMO with a mandate to return the company to its traditional marketing vision. In this program, Mr. Quinn, now riding atop one of the recession's most successful retail operations, reflects on what was learned during those those troubled days of 2006.