Exactly and I support your analysis. I also think that Arsenal will probably have difficulty winning this match. But that doesn't mean Arsenal will lose, but a draw is the best choice for Arsenal not to lose points when some of their mainstay players are absent from the match.
The young player Nwaneri and the Makeshift striker Arsenal has solved some of the issues they have as a club. Unless they get injured, those two players together can deliver an attack different from what Arsenal as a club were used to, I think.
Arsenal has a good chance to win still, they have to make use of every chance they create.
Nwaneri has settled into Arsenal’s starting lineup really well. The young talent has already scored against Brighton and Manchester City, and in the last round, he provided the decisive assist for Mikel Merino. If he gets playing time, I believe he can find the net again.
Arsenal should win this one. West Ham are in poor form, with just one win in their last eight matches and six defeats. I think the Gunners will get the job done.