What often ends up happening is that because it's so "strategically important" and so much money has been directed towards it, you are obligated to have expensive ("experienced") people hired based on past reputation -- which may not be applicable to new technology, roadmaps get laid out which everyone has to say they're meeting successfully, and then at the end you find out somehow that it didn't produce what you wanted.

Versus, a more bottoms-up approach where you hopefully create the conditions that incentivize or make possible some technologies and technologists to succeed -- without knowing fully who exactly or what exactly.

I'm sure that both have some inefficiencies, but the 1st method is sure to pay the people who have already been successful. But then again, maybe for a relatively incremental advance in some technology, there are fewer unknowns and method #1 works ok.