Why would you consider Lernout to have more upside than Scherbak? You may want to view the junior highlight compilations of the two on youtube and IceCap game highlights from last year.
Lernout is seen as topping out at maybe a #5 d-man by most and Scherbak likely is a top six scoring forward, or bust/off to the KHL. He was -26 on the IceCaps last year, so his defensive game is a bit shoddy for sure, but he had a good stretches of games for offense http://habsprospects.com/scherbak.html .
Safe to say is quite important year for both to prove they can be impact players in the AHL first off.