One team can't troubleshoot AND FIX every possible subsystem, so you just end up with lots (growing to hundreds) of people "on-call" anyway.
As others have said, follow-the-sun type models do exist, usually staffed by people in their normal working hours (EMEA, Americas, APAC) but this means you've still got to cover the weekend and public holidays (which there are a lot of when you factor in plenty of different countries).
Where you need a quick response you can have a core ops/noc team that looks at things with lower thresholds and shorter windows, and their job is to do the initial triage and then page the appropriate team earlier than they would have been alerted by their own alert thresholds/monitoring.
Actually clicking the button to change the status on a public status page is a whole different topic that becomes very political in certain companies.
I've worked in large orgs where we could (at at some times did) have around the world rotations. They don't work well. It've very hard to maintain real team cohesion, and you end up with really superficial operations. People tend not to dig in really deep, find good fixes, etc. Lots of superficial bandages.
> If you assume that "culture" is a resource like "microchips"
I do not. American culture exports American values, which are not universal. Simplest examples being the attitudes towards violence and nudity, which are very different in Europe, and vary within Europe as well.
Are you also implying that people who maintain vehicles for a living do a worse job at it than the owners doing it themselves? I would say the opposite is true.
Plenty of companies around the world have well-maintained fleets of vehicles. Trucking businesses, bus companies, train companies, even some taxi companies with salaried drivers, ...
No, I'm implying that people who maintain their own cars do it more efficiently. The simple stuff like cleaning has to be done by someone. It's not about doing a "worse job," it's about doing a more expensive job.
Waymo is replacing human drivers with a capital-intensive fleet business, a substantially more expensive vehicle, and still a large number of remote assistance staff, fleet operators, safety engineers, incident response, operations staff, etc.
But I'm not saying they can't beat a human driver, I'm just saying it hasn't been proven that they will. It may only be that the highest demand markets will provide a sufficient enough utilization to make it economically viable.
The tricky part will be the the train tunnel on the other end of Fehmarn, the current best guess for the finishing date is 2032[1]. They haven't started building yet[2], so I wouldn't put a lot of trust in that number.
I don't think the mobile phone market produces variety, somehow its market forces make it strive for uniformity. All phones are basically of the same from factor (with the two foldable ones being niches), roughly the same size, same battery, same connectors, one of two OS, etc.
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