The Knox era was probably the most enjoyable of any bills era and I saw them all(altho I was just a small kid in the mid 60s). That team had the most interesting characters and a ton of talent to go with it and to back up the loudness.
That team was such a cool mix of slightly over the hill all -pro players--some who came with Knox from LA(Robertson)- ,highly gifted players like Jerry Butler,Fred Smerlas ,Joe Ferguson,Joe Cribbs,Mario Clark etc etc who were all in their prime..,and role players like Lou Piccone--all 5'9" and 170 LBs of him
Dobler,Robertson,Haslett-all slightly nuts and a lot of fun.
RIP Isaiah