Teams have different level of engagement on different services. In my case: * I have a good in-depth knowledge of one product I'm oncall for. My team may impl

Teams have different level of engagement on different services. In my case: * I have a good in-depth knowledge of one product I'm oncall for. My team may implement some design changes required (ex: for scaling) and I contribute code to this project. * I have shallow knowledge of 2 other products, I'm trained at identifying a trigger that causes an outage and mitigate it (common mitigations are: move traffic, increase quota temporarily, rollback a release). If I can't solve an incident without in-depth knowledge of these products, I escalate to the devteam, and they will be responsible for root-causing. A mitigation that requires a patch, cherry pick and rollout would be a terrible (and risky) thing to do, so I'd rather find any alternative first.