Ask HN: How to turn a sprawling Slack nightmare into a productivity machine?

I joined a company recently that's going through several corporate mergers and our sprawling Slack environment has pretty much zero standardization. I've been given reigns to a portion of the environment and I plan on turning our jungle into something truly productive. What tips have you found to be exceptionally helpful for large sprawling corporate structure? I haven't looked into apps or bots much yet, but I'll be insisting on channel prefixes such as (alert-, team-, proj-, triage-, event-) going forward.