For a CIO to succeed in the era of big data, they must have the ability to cipher through tomes of data to find the real metrics which drive business decisions, and hopefully success. If you want to see the data in an unbiased way, you also must be able to effectively correlate the raw data into the true business context. For instance, understanding the end user experience by monitoring all layers of your infrastructure.
the point that the job of the CIO and the BI organization is not simply to present data, but to show it in a way that influences business decisions.
You can read more here: CIO Matters: Data presentation goes to the movies