Complex sentence: Smith retired from the sport of decathlon in 1999 and went on to a career in Financial Services and Wealth Management industry along with working for CBC Television Sports as a color commentator for track and field events.
Split into simpler sentences: Smith retired from the sport of decathlon in 1999 and went on to a career in Financial Services and Wealth Management. He also works for CBC Television Sports as a color commentator for track and field events.