“As the roles of marketing and the chief marketer expand, it will become critical for CEOs to ensure that they have the right person as CMO, to understand fully how customers are changing, and to become more involved in developing new marketing capabilities across the company.”

That’s David Court, writing for McKinsey Quartley, in an article published over 10 years ago. Sound familiar? That same sentence could belong to the latest trend piece published in Forbes, Inc., Ad Age, Fast Company. The idea of digital transformation isn’t new, but as marketing needs have evolved, so, too, have the people in charge of them.

In March 2018, the consulting firm Spencer Stuart revealed some good news for CMOs: The average tenure for the position had increased from 42 months to 44 months. The stat marks a reversal over years past, when CMO turnover had led to shorter stints. The number hasn’t…