I'm not sure why they would be more skilled than any random people off the street, or a coin flip, etc. There's no reason to think they produce a result better than whatever control group you can think of compared to any other subset of people.
Holmes founded the company beforehand, then people gave her money. As far as I know.
So it seems a bit off to frame it as though someone else founded the company and hired her.
Without investors, Holmes never would have mattered. The investments are what enabled her to commit the fraud.