Out with the old, and in with the new: McGraw-Hill is now known as S&P Global. The venerable 100-year-old company, which is famous for publishing text books and trade magazines, recently changed its name after the strongest divisions known best for its S&P 500 stock index.

Doug Peterson is orchestrating the transformation. He was tapped as CEO in 2013 to sell off McGraw-Hill businesses and to build up investment and data operations.
For 26 years, Peterson climbed the ranks at Citigroup, running bank operations from New York to Japan, to Uruguay and Costa Rica—which is to say his new gig is a field he knows well.

Peterson tells Fortune’s Susie Gharib that a clear vision to stay connected has been critical in successfully leading the company through change. “You need to have conviction. You need to keep communicating the same messages over and over,” he says. “And that will get people to start understanding why. They’ll understand the logic to what you’re doing and they will buy on and eventually believe what you have to do.”