all the great ones that come to mind (and i get that this is sort of self-fulfilling as that's why their greatness comes to mind) did. peppers, strahan, white, LT to some extent, bruce smith Yea I think the self fulfilling prophecy is definitely going to be true here. Here's a list of all guys with 50+ Sacks through their first 6 seasons. 60 names, Mack is 21st on the list with 61.5. Perhaps ill do something later with this list and see how well they age (and maybe I can also compare to 60 great NFL QBs through 6 seasons and see how well they actually age). Link Bump from this. I analyzed this list a bit, and it really isn't as great as you'd like to see. Obviously its solely focused on sacks and Mack is definitely a great all around DE, but... The top 10 does fairly well over all, with guys like Reggie White, Demarcus Ware, Bruce Smith, Richard Dent, and Jared Allen. These guys all met the 50 sack threshold over their next 6 seasons, but still with a sack/game decline of about 20% (but with sack numbers that still are on par or better than Mack's first 6). However, Mack is 21st on that first list and from 11-20 you have names like Pat Swilling, Adre Tippett, Dexter Manley, Charles Haley, Elvis Dummervil, and Kevin Carter. Only Simeon Rice actually met the threshold for 50 sacks in his next 6 seasons of guys in that 11-20 range. And he's actually the only guy on the whole list to significantly improve. (one more guy, Lawrence Taylor technically was 20th on my list, but sacks weren't a stat until his second year, so he's obviously actually top 10 guy on the list, and he stayed steady over his next 6 seasons, with little to no decline in overall sack/game numbers). From 22-60 it definitely looks less like an elite list than a "pretty good list" Overall, taking out the current players who haven't accrued years 7-12 yet, there's 49 guys left from the list. Only 18 met the 50 sack threshold over the next 6 years and an additional 2 met the 50 sack threshold the whole rest of their career. So 29 of 49 top pass rushers didn't meet 50 sacks the whole rest of their career. Along with Simeon Rice, the 3 guys who saw minimally stronger sack/game numbers over their 7-12 seasons are Jason Taylor, Julius Peppers, and Chris Doleman. So you're basically hoping Mack is like a Julius Peppers or Jason Taylor career curve, or that his overall skill set makes up some for a drop off in pass rush numbers. I'm going to say "Myth Busted" on the "Elite Pass Rushers age well". ETA- On big name who barely missed the cutoff was Michael Strahan, who only had 47 sacks through his first 6 seasons, and still had age 29-32, 34, and 36 seasons of 9.5, 22.5, 11, 18.5, 11.5, and 9 sacks. But he's obviously a unicorn. There's 10 other guys who got 50+ sacks in years 7-12 after not doing so in years 1-6, but its definitely more of a "pretty good" list than elite list. Edit 2- I was actually initially using a sack/game started metric. Which maybe was a questionable metric to use, but you had a few guys who spent at least one, or many, seasons as pass rush specialist who didn't "start" (John Randle, Robert Mathis, Terrell Suggs). These guys all go into the "aging well" metric for pash rushers in that they all improved their sack/game numbers (along with Peppers, Taylor, and Rice). But if Mack is a better comparison through 6 seasons to guys like that rather than a LT, White, Dent, the list still is definitely not as strong, as the Peppers and Suggs types become exceptions and not rules.