Wow, I just finished watching a documentary on the Los Angeles Rams front D line, the Fearsome Foursome - A Football Life, which included Rosey Grier, Lamar Lundy, Merlin Olsen and Deacon Jones. Some say (and being old enough to remember seeing them on TV, I agree) that were/are still the best defensive front four to play the game, And yes, I loved the Purple People Eaters too.
If you get a chance to watch this show, don't miss it. It's worth the time.
Here's a little clip: