"It was originally created by Kelly but he managed to transmit the spirit to a successor, who wrote an interesting book about his time (80's and 90's) called 'stealth'."

The time period doesn't quite match up, but I found Skunk Works: A Personal Memoir of My Years at Lockheed by Ben R. Rich https://www.amazon.com/gp/product/0316743003/ to be quite interested if not quite as interesting as I'd hoped when I bought it.