Some plain speaking here with hard truths for both vendors and end users. Having being mostly an end user many of these observations strike home.

Tackles one of the factors least talked about- folk and as an old North English saying goes "There's nowt as queer as folk".Forget logic and rational common sense and look at the human foibles of people across an organisation and how this compromises effective BI deployments. 

More of that in Damning analysis of Analytics

Recommend you read the full article below by Timo Elliott whose first law of BI is "Business people will be dissatisfied with their BI"