Young struck in victory over West Ham United on Saturday.
"He's always had that in his locker", said Moyes.
"I remember even in his early days at Aston Villa he was always coming in off the left and scoring goals.
"He scored a great goal against Stoke in the cup and scored another one today which was an important goal, it really settled the game
"He played really well at the Britannia and he's come on today and had another good impact. I think it will do him the world of good."