Arsenal have made an impressive start to the new campaign. Mikel Arteta will be delighted by the form his Arsenal side have produced, as they remain unbeaten in all competitions. However, not everything that the manager has tried so far this season has paid off. Arteta is still a young coach, learning his craft, and whilst he has done an impressive job at the Emirates Stadium there is still progress to be made. READ MORE: Arsenal’s XI for Mikel Arteta’s first match as managerMikel Arteta’s tactical change vs Manchester CityArsenal were able to secure a 2-2 draw on the road against Manchester C…