Percussion Software has announced key changes in the company's management team. Michael Alden has been promoted to president from senior vice president of corporate operations, and Patricia Nagle has joined the company as vice president of worldwide sales and alliances. In his new position, Alden is responsible for the overall day-to-day operations of Percussion. Nagle is responsible for the company's global sales and strategic alliances, including relationships with system integrators and technology partners. Nagle was previously president, North American operations for Syskoplan Consulting, Inc., where she was responsible for overall business strategy and field execution.