"CEOs need to be “single-minded and aggressive” about driving the transformation. “There’s no way you can do digital transformation by halves,” he comments. “Our CEO is chirping in my ear the whole time. He is very activist. He bases himself in our garage frequently. He drops into meetings. He just starts talking to people. It’s not enough just to have CEO sponsorship. It needs to be provocative, disruptive, ambitious, and often uncomfortable sponsorship to be successful.”

Andrew Brem Chief Digital Officer Aviva in "A ROADMAP FOR DIGITAL TRANSFORMATION" McKinsey 

Even more important when you see that a single enterprise steals most of the profit acting as successful first digital mover.

See "Winner takes most in digital transformation"

All the more reason for CEOs to take note and plan for full digitilisation across the whole business.