SymphonyIRI Group, Inc.: welcomed Andrew Appel as president and chief executive officer. Appel, who also joins SymphonyIRI’s board of directors, succeeds John G. Freeland, who moves into a new interim role as executive vice chairman and will remain on the board of directors until his retirement later in 2012. Appel has held a number of senior leadership positions for Chicago-based professional service firms. As chief operating officer at Aon, Appel developed and implemented a successful revenue...