I think L'Heureux probably rates as our most impressive prospect performance of the year. He put himself on the map. Molendyk may get an HM, and Askarov had a good season prior to the playoffs, while Afanaseyev basically did what we hoped he would in terms of becoming a "top player" at the AHL level. There were some other good prospect performances: Svechkov was good in the AHL, and Fink impressed as a freshman. Ufko also stepped up very nicely after college. But I think L'Heureux really stood out in terms of elevating himself into a guy we could realistically project into a top-9 role in our lineup next season.
It would have been great if Kemell and Wood had stood out to a similar degree... they had "okay" seasons, and there is definitely nothing that we should even remotely consider panicking about there... they both still have lots of time.
Did anybody "disappoint"? I'm not sure I'd stick that on ANY of our prospects. Schaeffer was only ever going to be a 4th line grinder. Matier/Prokop/Livingstone didn't give us a warm-fuzzy they'd ever be NHLers, but they have some time left too. I think our overall prospect progression chart was very positive this season.