Larnell is quite inconsistent and unlucky with injuries as well.I didn't rate him as high as Lingard because of his inconsistency.A (more extreme) version of Lingard in the academy currently would be Ollie Rathbone.
I had forgotten about his injuries, but he was still quite a talented player.
He had a knack of scoring goals in big games, i think consistency would have come as he matured.