"For those who coached under Walsh, Finding the Winning Edge was a study of the genius beyond his playbook. For those who coached against him, it was a window into the mind of their nemesis." -- The Coaching Philosophy of Bill Walsh. The book is now out of print and even a used copy will cost you $1,249.99 on Amazon.
An oldie but a goodie: Don Reese, then of the San Diego Chargers, talks about his own problems with cocaine and the widespread drug use in the NFL at the time. [more inside]
Tony Washington, an NFL prospect, has a black mark on his record. At the age of 16, he was convicted of incest for sleeping with his then 15 year old sister, and forced to register as a sex offender. Washington feels this is the reason he is being ostracized by the NFL.
ESPN takes a look at how Madden NFL became a franchise video game.
Malcolm Gladwell did an article about this in the New Yorker, but this GQ article shows the opposition the researchers who discovered CTE faced from the NFL.