Most CMOs today have business backgrounds, not marketing
It's becoming less important for the CMO to have actual marketing experience. More and more, companies are looking to incorporate business leaders into different roles so they can drive initiatives with a broader industry perspective.
The CMO absorbs another executive role
What ever happened to the chief advertising officer? It might be obsolete, but the essence of the role has been taken on by the CMO. Here's how the two have merged.