You could make the same argument for companies that don't own their own buildings, their own land, or have vendors of any shape or form.
That is, all companies ever.
The opposite of what you're proposing is "do your core business".
Why would fedex be better at running computers than Azure is?
Why does FedEx use vans built by a car company? They should build their own vans. The tires should clearly be made from rubber that FedEx vulcanized themselves.
I've seen huge insurance companies outsource not just their hardware, but their ops too.
McDonalds may be in the real estate business (and not the burger business), but FedEx is not.
That is, all companies ever.
The opposite of what you're proposing is "do your core business".
Why would fedex be better at running computers than Azure is?
Why does FedEx use vans built by a car company? They should build their own vans. The tires should clearly be made from rubber that FedEx vulcanized themselves.
I've seen huge insurance companies outsource not just their hardware, but their ops too.
McDonalds may be in the real estate business (and not the burger business), but FedEx is not.