For example: Debt instruments with similar characteristics can be pooled into a new security, for example: In general, pooling different assets or debt-like obligations into a new security is called securitization, a practice commonly used by structured finance.
Pooling IT (equipment and staff) resources involves virtualization of typical IT stacks server, storage and networking (but also on the level of datacenter power and cooling).
A thorough analysis of the infrastructure is recommended to identify potential single point of failure (SPOF).
On the level of resource pooling, bigger suppliers tend to have the benefit of being able to provide shared support environments with round the clock service.
Do you prefer access to a service desk round the clock with potential less expertise or do you want to rely on a single support engineer (who is 'on duty' during off peak hours)" The resource management concepts of pooling can easily be abstracted and virtualized.