Digital Transformation: The journey starts best with Spend Digitization

CFOs know that it is imperative upon businesses to change the way they operate by digitizing core processes. Such transformation has been seen to improve the performance and reach of organizations.
George Westerman, Research Scientist at MIT's Sloan School, dramatically puts it as follows. When digital transformation is done right, it's like "a caterpillar turning into a butterfly," but when done wrong, "all you have is a really fast caterpillar." So the writing is on the CFOs screen, but she is unsure where to start the transformation initiative - which processes are best suited for digitization?