If you (or anyone here) hasn’t read Instant Replay by Jerry Kramer, about a year with the Packers in the Lombardi era, I recommend it highly. Great book, really gets into the nitty gritty of football in that time, shows a lot of why Lombardi was such a winner.
Agreed, great book. As a pack fan I bought it and read it the week it came out. His sequel to it was good also