Superior Printing Ink has announced several key changes to the company’s management team, effective June 15, 2009.      James La Rocca has been promoted to Superior’s chief operating officer. La Rocca, a 40-year veteran of Superior, will now have overall accountability for Superior’s sales, technology, manufacturing and branch operations.      Stephen Foy, a 24-year employee and currently vice president, Midwest & West regions, has been promoted to senior vice president, sales and operat...