Technology improvements have relaxed many historical constraints on data center operations that forced hardware and human assets to be considered as a single unit. The majority of IT support functions can be delivered as effectively at WAN distances as they can be locally. Decomposition of physical space needs between man and machine enable least-cost site strategies and may provide the flexibility needed to manage attrition of skilled staff. The ultimate policy for data center topology depends on several factors as discussed above, but it is largely a compromise between risk mitigation (geographic distribution) and operational efficiency (consolidation)”]
Source: https://www.csoonline.com/article/2117205/data-center-site-selection.html