John Villacres works in network automation and tools at Nationwide. He demonstrated Splunk to colleagues in 2012 and they now use it extensively. Splunk has improved their ability to troubleshoot issues by providing timely access to network data through custom dashboards. It has reduced resolution times for problems from days to minutes by integrating data from sources like firewalls, routers, and packet captures. More teams now use Splunk as its efficiency has allowed employees to take on new tasks while maintaining productivity.