One of Boeing/GD’s arguments is that when they got the contract for the A-12, they expected stealth technology from the DOD, and that Lockheed and Northrop took the position that, even though DOD was the customer that ordered and paid for the F-117 and B-2 programs, THEY owned the technology and wouldn’t allow DOD to give the knowledge to competing companies. So McD/GD had to essentially start from scratch, neither having any stealth experience, which made costs shoot up and added huge delays.
I’m quite surprised DOD didn’t tell Lockheed and Northrop to go pound sand. They did the work, but in my view, if the DOD starts the program, and pays for it, then DOD owns everything about it.