I don't know Red. I think that was true during Ware's career and partly true when Haley was here, but despite Lilly and White being two of the greatest defensive players in NFL history, they had talent all around them in the late 60s to late 70s.
Lilly played alongside Jethro Pugh, whose career was played in the shadows of not only Lilly at RDT but two other HOFers who played LDT - Olsen and Greene. George Andrie was one of the best DEs in team history and was highly decorated with All Pro and Pro Bowl selections. Jordan was a great MLB who, unfortunately, played in the premier era of 4-3 MLBs (Butkus, Nitschke, Lambert, Nobis, Lanier), or he would have been more highly decorated. Howley was great and is criminally overlooked for HOF consideration. The secondary was manned by All Pros like Renfro and Green and, for a short time, Adderley. Lilly was the war daddy only because he just may have been the greatest interior lineman in NFL history, but those Cowboys teams were stacked. The '70-'71 defenses were great.
White played on one of the best front fours ever with Martin and Jones at end, both of whom topped 100 sacks in their careers. Harris and Waters were arguably the top safety tandem in the NFC, if not the entire NFL, for several years in the late 70s. Breunig and Lewis were good players, better than support players to White, the top war daddy on those teams. The corners were so-so other than Renfro at the tail end of his career. Hollywood could have been a HOFer but he wasted incredible God-given talent. The '77 defense may have been the best in team history, and one of the greatest ever (Martin and White combined for 39 sacks in 14 games that year). It was pretty close to the Steelers' defenses of the mid-70s, which were just flat out loaded at every level.
Obviously, this current team does not have a Lilly or a White, and it does not have the kind of Pro Bowl talent at every level of the defense that Lilly's and White's teams had either. If only. With our offense, they'd be prohibitive favorites to beat anybody in the SB.