I should have said "basically impossible to do" but when I think of "clue chip generational player" on defense he just comes to mind.
I grew up a Bills fan in the 80's and 90's and even I forgot just how absolutely dominant that guy was until I went back and watched some old games and looked at his stats.
The guy was just built different. 10 sacks at age 37 with Washington, and 9 sacks at age 39. Even 5 sacks at age 40 is crazy.
But here... Guy had 14-19 sacks most of his prime seasons.
He might be more of a once in a lifetime player than once in a generation, though.