I’m sure field rescue is hard, and I’d be incompetent. Thinking & acting quickly under pressure is not my forte. Ruminating on a challenging problem that takes days of thought is more my thing.
That said one skill doing IT at very large company has taught me: you can’t do your own job if you are double-checking everyone else. Maybe a team lead, but in cases like this, it’s probably more down to picking the people who can be depended upon.