They didn't hire the top talent in datacenter-building, because they had the expectation that they could buy a data center buildout. Sure, they hired top talent from other fields, to work other tasks, but that's unrelated to this.
Anyway, I don't have inside information on this, I'm just reciting what they announced publicly. If you want to argue that they in fact lied in the public announcement, and they secretly hired a bunch of datacenter-building-experts, then it's on you to show some proof for that claim.
