How important is your SIEM?

Obvious aspects aside like to satisfy regulatory compliance, and also putting cost aside as SIEMs can be quite expensive, how would you gauge how effective or useful your SIEM is compared to all other security/alerting tools in your organizations?

The reason I ask is because my team manages a large SIEM in a very large organization. Because it's so large, duties are silo'd. A different team leverages the SIEM to create alerts which get fed into a SOAR product (managed …

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