I really think highly of all these players.
You're English, I happen to speak the language. I grew up very much around the game from the moment I was basically born.
I grew up in the Cowboys training camps. Staubach, Pearson, Jones, White, Dutton, Harris, Martin, Waters, DuPree... the list went on forever - what an amazing era of football team.
Under Tom Landry, they never lost an opening day game.
When I was a kid, you thought those players would be YOUR players FOREVER
but then some of them retired... GASP
and then the rest of them retired.
Glad you found the game. If somehow you could go back and watch the 1970's Raiders, every game front-to-back, you'd get some better context, and a whole 'nother view on what this game is/was.
Cheers!