What last night showed is that Arsenal's squad still lacks depth. The 1st XI will give anyone a game but when you put players like Havertz, Kiwior, pound shop Bernardo Silva (Vieira) in then we look bang average.
That being said I don't think we are unique in rotating players for the Carabao Cup - all the prem teams do it and West Ham rested some of their 1st teamers as well. They were just more physical, better prepared and showed more desire than us - plus they took their chances whereas we had all of the ball but did nothing with it before Arteta put some of the big guns on, by which time it was too late and we just got a consolation goal.
Was very surprised that Declan Rice got booed last night. Perhaps it was just a minority but that lad did that absolute maximum for West Ham so I felt it unfortunate that some fans lacked class in that regard , it will probably fire him up for when Arsenal play the Hammers in the league