[jstoja]

Why didn't they chose to split it? You always have your bare-metal infrastructure and if you need a terrible growth and need more IT infra, you can use public cloud to handle to load until you find plan a good solution bare metal.

Sure it's some work, the setup is sometimes not ideal, but it's a huge gain imho.

In addition, many people bring the argument that infrastructure is not their core skill. It is true, but do they need to get to the level of public clouds to run their own infrastructure ? I mean, even with sub-optimal choices on hardware but smart choice on how you handle your architecture, you still can have huge savings and not so many risks by doing it in-house.