He proved it last season, for another team.
But this season, he has proved capable of scoring 3 goals, though of course it doesn't help that he hasn't played many games. I still expected far more from him.
In the last game in particular, he was our only senior attacker and he should've been running the attacks, like a puppet-master, using Rashford and Martial has his puppets. Yet this did not transpire.
I am massively disappointed and based on what he has done this season, he is certainly not a player you can rely on.