This article had a different take on corporate mentality than what I originally thought of when I saw the headline. Another example of a diocsean "corporate mentality" is the micromanaging of the "output" (if we are to use corporate speak). In my diocese the parish churches are encourage to adopt top down structures with limited lay participation. When a priest in one parish left in controversial circumstances, the diocese used it as an opportunity to have their new priest shut down all the lay ministries (had the priest himself running all education programs). End result was they basically killed a thriving community and many fled to my (non-diocene) parish.