Start with the problem, not the solution.
Atlassian's support organization had regional teams using different queue-management practices and locally developed approaches. The strategic objective was to increase the organization's ability to support a growing customer base without simply scaling headcount.
We used operational measures including time to first touch, resolution time, tickets worked, and CSAT to identify teams that were consistently performing well. Then I observed how regional and team leads actually managed their queues and worked with them to uncover the practices and decisions that weren't visible in formal documentation.
A dashboard could tell us which teams were performing well. It couldn't necessarily tell us why.