NEW YORK -- In 2004, when he frantically danced his way into the public consciousness, the oddly engaging Mr. Six became one of the country's best-known brand icons. But in late 2005, the amusement park company's new management dumped the campaign, calling its creative concept "misguided." This spring, as Six Flags slipped into a bankruptcy reorganization, the dancing octogenarian was back again with a vengeance. SVP of marketing Angelina Vieira Barocas discusses the turnaround in thinking as well as Mr. Six's future.