+1 for bringing up the hard part. I've worked on several big data warehouse projects where it was tough to make business managers understand that even the simp

+1 for bringing up the hard part. I've worked on several big data warehouse projects where it was tough to make business managers understand that even the simplest correlations between different fact types across dimensions (using those terms in the Kimball sense) provided ROI. Forget visualization and deep statistics usage. You simply can't get there until you have executive commitment and belief in the value proposition. Personally, I wish I was a better evangelist for these skills.