Good. These guys, in addition to obviously being very smart, are young and don't have a lot of baggage in government or industry. I think they are perfect for tracing down what has been going on and finding where inefficiencies and/or corruption has been occurring. Anyone who has issue with rooting out corruption and inefficiency isn't in the right. Of course what is done with what they find will not be in their hand…
I've worked on billion dollar defense projects, and have supervised plenty of smart junior consultants from top consulting firms (McKinsey, etc.) - guiding them through processes, while they're digging through data.
Believe it or not, but you don't know what you don't know, and domain expertise is absolutely crucial. Slashing things you think are inefficiencies can lead to some serious footguns.
And I fully expect Musk to value speed over precision.