Boy does this have a ring of truth to it:

“The one interesting aspect of the book is how little [MacNamara] understood about what was going on or understands today. He doesn’t even understand what he was involved in. I assume he’s telling the truth. The book has a kind of ring of honesty about it. What it reads like is an extremely narrow technocrat, a small-time engineer who was given a particular job to do and just tried to do that job efficiently, didn’t understand anything that was going on, including what he himself was doing.”

At first I thought he was talking about Biden, Blinken, Sullivan and Austin.