He wouldn't be first team at Arsenal. He may not even be first choice goalkeeper for their U21's.
He can go out on loan and get experience at Arsenal or Brighton, so that makes no difference either.
He's just signed a 4 year contract. He can't just up and leave. I reckon he might just get a...
I'm not saying don't give them a chance to play. I'm saying you can't write someone off just because they haven't been given a chance yet. Just because he's been overlooked for this evening doesn't mean he's not very good.
Solly March made his debut last season aged 19.. is he no good because...
He made is debut as a 16 year old but I don't think that matters. Playing young is no guarantee of being good, neither is not playing. Plus goalkeepers tend to peak a lot later than outfield players.