James had been a high priest of technocracy ever since coming to NASA in 1961, arguing for the authority of experts, well-organized and led, and with sufficient resources to resolve the many problems that pressed the nation.
The phrase in bold is the one I don't quite understand. I am assuming "arguing for the authority of experts" describes James. But "well-organized and led" is confusing.
Does it mean James is a well-organized and "led" (what?) person? The final part "and with resources..." I am assuming also describes James. So there is a parallelism between "with resources" and "arguing...".