TheReelChuckFletcher
Former TheRillestPaulFenton; Harverd Alum
I think that guys that were already somewhat slow (a la Lucic or Anisimov) have a hard time staying in the league after 30, and it's even worse if their style was overtly physical and blue-collar. The exceptions to that rule are finesse guys whose games have never relied on any sort of athleticism to succeed, a la Joe Pavelski, but that's a rare breed. Usually even the slower guys needed at least some sort of burst somewhere in their legs to make the NHL.