Arsenal are thriving under Mikel Arteta, with the first-team still unbeaten, but a problem is now emerging. Arteta was criticised in the past for not giving opportunities to academy players, but he has silenced those critics, with several youngsters playing a part in the first-team this season. Ethan Nwaneri and Myles Lewis-Skelly have appeared in the Premier League, with Lewis-Skelly also making his Champions League debut, whilst several Hale End Academy talents played in a Carabao Cup victory over Bolton. Some have been included in matchday squads in major competitions, with Lewis-Skelly, Nw…