Along the way I was an "incident manager" at a couple different places, meaning I was basically a full-time Incident Commander under the Google SRE model. This work was always fun, but the hours weren't great (these kind of jobs are always "coverage" jobs where you need to line up a replacement when you want to take leave, somebody has to work holidays, etc.). Essentially I'd show up at work and paint the factory by making sure our documentation was up to date, work on some light automation to help us in the heat of the moment, and wait for other teams to break something. Then I'd fire up a bridge and start troubleshooting, bringing in other people as necessary.
This didn't seem like something to retire from, but I can imagine it being something that comes back, and I may have to return to it to keep food on the table. It is exactly the kind of thing that needs a "human touch".