If it isn't uncommon maybe you should provide a long list of prospects who managed to succeed under those circumstances?
Well if you limit the analysis to players who played in the CHL and went on to have notable careers in the NHL, I came up with at least 7 players from 2003-2011:
Jeff Carter 1.16 in draft, 1.16 in draft+1
Ryan Getzlaf 0.97 in draft, 1.08 in draft+2 (up but barely given it is a draft+2)
Andrew Ladd 1.06 in draft, 0.69 in draft +1
Derek Brassard 2.00 in draft, 1.79 in draft+1 (injury shortened)
Logan Couture 1.44 in draft, 1.14 in draft +1
Zack Kassian 1.04 in draft, 0.82 in draft+1
Ryan Strome 1.63 in draft, 1.48 in draft+1
Keep in mind the total number of CHL players drafted in the first round who returned to junior after the draft AND went on to have notable NHL careers (regardless of draft+1 or draft+2 performance) isn't terribly long. You're looking at maybe 25-35 players who fit that criteria (as excludes all europeans and US collegiates, and anyone who went straight to the NHL like Kane, Stamkos, etc). So the % of players who stagnated or regressed post-draft (or draft+2 in the case of Getzlaf) is about 1 in 4 or 1 in 5 over that span. Not the majority but also not at the margins of probability either. It happens reasonably often to players that today are pretty good players.
Edit: Here's a list of all the players I looked at. Stopped at 2011 and generally tried to stick to top 6 players or players expected to potentially play there (in the case of Kassian).
*Nearly flat in draft+2
Last edited: