Advanced Analytics should be an enterprise shared service. But build that with the end in mind. What is critical to be shared, either because of availability or quality? What is critical to be focused or distributed, because of demand, domain knowledge and legacy issues? You will find that there is more gained around shared aspects than lost when analytics teams are not dedicated to a specific function.
Getting to a shared service enterprise model can be challenging. I will advance this point of view in future posts.
The Analytic Executive 