The one glaring area for improvement with Gross is his end product. He tends to have the blinkers on when in range of goal, often blazing away and finishing poorly. With more composure and less rushing on his kicks, perhaps even benefiting from lowering his eyes more often, Gross could become an more prolific scoring avenue.
He is capable of measured short passes and is quite efficient both in slow play and by hand, but certainly can be more refined within the 70m radius of goal. It's nothing he can't really iron out at the next level with more work on his touch and in a strong team environment.