CIOs are actively discouraged from possessing any IT background.
Just look at the retardation UW is teaching:
https://www.coursera.org/course/inforiskman
https://www.coursera.org/course/inforisk
https://www.coursera.org/course/infosec
Those "people", they call themselves teachers/professionals in the field, will tell you that Information Security is ALL about covering your ass and shifting blame to a third party. All three courses are about getting a slip of paper that says you delegated responsibility clearing your company from any lawful obligations in case of a breach. Not a single peep about technical aspects or real security of data/infrastructure. Its all about getting that "we paid company X to do it for us" waiver.
There was (deleted now) a huge thread on Coursera forum titled Disappointment covering this topic and demonstrating total lack of professionalism or any real world knowledge. Whole UW program is a government funds skimming scheme. Just look at this garbage:
"Center of Information Assurance and Cybersecurity at the University of Washington, designated by the NSA/DHS as a Center for Academic Excellence in Information Assurance Education and Research"
I highly encourage you to check out those courses (I think there is preview available for old lectures) if you are in need of a laugh, or reality check concerning state of CIO education.