While I prefer the pro football of the 60's, I would hesitate to use the word degenerate. Regenerate is closer to what is happening. Football is drawing more viewers through scandals, more scoring, more hype, catering to females, catering to younger demographics, licensing agreements, Europe, and the like.
Pro-football is a veritable cash machine for players and owners alike. Thanks primarily to Mr. Rozelle and his partnering with TV and the players union understaNDing that "it's the money stupid!". It's the old adage, "give 'em what they want before they know they want it." Football seems to be doing that and doing it well. Changing? Yes. Degenerating? Hardly.