[dataflow]

By "had a hand in causing" do you mean "they should have prevented it", or do you just mean "they were involved in the causation"? Because sometimes you're forced to do things you know are wrong, because that's what other people are making you do, and in that case you still "have a hand" in causing.

[praptak]

Something in between. Like "pushed to implement a feature without the safety measures". When outages started to happen implemented Outage Prevention Program, i.e. implemented the safety measures that should have been implemented from the start.

Subsequent data collection demonstrated X% outage frequency drop clearly demonstrating readiness for promotion, data driven.

[sepositus]

Exactly this.