It comes from work done at Google with the SRE teams. It mentions important items like culture, respect, team safety and taking chances.
This one stands out for me, particularly as this was one of the biggest causes of stress being part of an Operations team:
On-Call and Operations The stress of on-call is what drives people away from operations roles. Curiously, 24/7 shifts are not the problem. The real problem is small on-call rotations that result in long, frequent shifts. The more time people spend on-call, the more likely they are to suffer from depression and anxiety . The expectation of having to act is more stressful than acting itself . It’s one thing to accept that on-call is part of a job. It’s another to tell your fiveyear-old daughter you can’t bring her to the playground.