There is a strong link here to my Vision vs Pragmatism article. In this I argued that Vision and Pragmatism are both essential for the success of any project, be that related to change, to IT, and certainly when using IT to drive change. Unsurprisingly, similar comments apply to whether a holistic or incremental approach to BI is the superior route. However, in this case, I will come down more firmly on the side of one of the options