Matthew Knies received a substantial long-term commitment from the Leafs and is a prized player in the organization. He will need to take another step forward to help offset the loss of Mitch Marner, and he'll need to prove his 29-goal season while shooting 19 percent was not an aberration. Knies is one of the better young power forwards in the league, has already established himself as a viable linemate for 1C Auston Matthews, and still contains untapped potential.