JVR - Nylander - Marner
Brown - Kadri - Kapanen
Rielly-Chychrun
Gardiner-Harrington
Dermott-Percy/Marincin
Think we're a Matthews or Chychrun away from having a legit core assuming our prospects pan out...
No we're not!
Nylander and Marner are likely going to be good to very good NHL players, that's true.
Rielly is going to be a very good NHL offensive defenseman, that's true.
The rest of the guys you've listed fall anywhere between the good NHL player and borderline NHL player.
However, name me the very good defensive defenseman.
Name me the very good goaltender.
Who are likely going to be our elite or star players? Marner? Nylander? Our draft pick this year?
This league is, as Jeff O'neill has said many times, a star-driven league. You win because you have stars and you don't win if you don't. We don't, and quite possibly won't have a star from anyone in our organization currently.
The most likely candidate to be a star player in this organization is back playing in the OHL (which is likely a very good thing seeing as the only other option would be to have him stuck with this collection of losers).