Ask HN: How did you stabilize your team/company?

My current team is currently very unstable. We have incidents every 2-3 days, and we're constantly firefighting. I don't want to bore you with the specifics of our current situation. Instead I'm curious to hear some stories how you managed to fix your team and what problems you were able to solve.

For example, maybe someone actually tried to put up a "Days since last incident" sign and that somehow worked? Or you did something that goes against typical advice that you find when you google this topic?

Curious to hear your stories for some inspiration