In my company, there are a few people that are assigned to a project when the project needs to be "saved". It can be miscommunication with a customer, which needs quick resolution. It can be that we were executing on the wrong path. It can be that we need to go "back to the basics", re-think the goal and re-prioritize action items.
What do you call such a person?
I thought about "firefighter", but it's not quite the nuance I am looking for. "Firefighter" kind of implies that some damage is already done (downtime, data loss, money loss). I'm thinking rather that the project is like "we have enough time to steer away from the iceberg, if we knew how to turn this ship".