His match against West Ham was a bit strange. I thought he was actually very good on the individual level - he was getting on the ball a lot, running at and beating players for fun and was often leaving two or three players trailing him. He looked by far the most likely person to create chances. He constantly showed plenty of acceleration and speed off the mark, which is something that he was being questioned about.
The problem of course is that he was the only striker on the field, so him dropping deep was leaving us short up front. He was creating space but nobody else (other than sometimes Lingard) was in position to actually take advantage of it.
Like the rest of the team he wasn't as good in the second half, but he still looked the most likely.