Here is their respective PPGs vs. age, all situations:
Crosby's shortened seasons likely inflated his peak, but still...
I think that's a bit misleading just because when you score at Crosby's level, volatility and drop offs / recoveries would be more expected, especially with the coaching changes and injury history that Crosby had during his decline.
Is there a broad history of players that are closer to Toews' level of production who have recovered like Crosby after a fall of >30-40%?
Maybe Travis Zajac is a good comparison? Both great 2 way centerman with size and played with talent on their wings in their primes.
- Zajac was a 60-70 point 2 way centerman in his prime (~23-24 years old)
- Fell off to a ~40-50 point player when there were changes around him and he ran into some injuries (mid to late 20's)
- Decline continued until he bottomed out at around 27 point pace 2 seasons ago (29 years old; context: he played on an awfully low scoring devils team that year, the leading scorer had like 43 points)
- Has slowly regained some of his form and is a 40-50 point guy again at the ages of 30-31.
Compared with Toews:
- In his prime, Toews was a 70-80 point player (~22-25 years old)
- Fell off to a 60-65 point player (mid to late 20's)
- Currently pacing for 45 point season at 28 years old - hopefully this is the bottom.
- If his recovery is anything like Zajac's, he should return to ~60 point player for a few more years.
At this point, if Toews could right the ship like Zajac that would be pretty good news for Chicago fans. Obviously every player is different, and I'd say more times than not recoveries to full form are rare. One thing of note is that Zajac never lost his great 2 way play despite his production drop, which still made him a valuable player.