Literally no way to determine this right now. Gauthier hasn't played a single pro game. Drysdale has barely played for the last two years.
I think Verbeek, coming from Detroit, has a similar mentality in what he likes out of a player. (200 ft forwards who are hard to play against) Gauthier fits what he likes, so good for him capitalizing.
That said, Philly was in a really shitty situation having a recent 5OA pick jerking them around. The fact that they came out of it with a recent 6OA and an added 2nd rounder isn't bad. People dragging that trade for Philly should really look into the Adam Fox situation and the minimal value he had. Granted, Fox didn't have the draft pedigree Gauthier does.