Success Factors for Chief Data Officer?

As I’m still contemplating about success factors for Self-Service BI at my current project, I’m also curious what are success factors for Chief Data Officers (CDO)?

I met a (imho) very successful CDO at a previous project and I’m trying to deduce what made him so special. Or to rephrase it: what can I recommend to the CDO at my current project to enable him to be successful?
The best information I found so far is an IDC Survey on the “priorities, challenges and KPIs of today’s CDOs”. If you got any further information for me I’d be glad to read it, reach out to me via Twitter (@DataDreamerCom) or send me an e-mail. I’ll digg through the material and outline my thoughts in the coming weeks.