The ESPN FC crew discuss what aspects Arsenal should focus improving upon after falling 2-0 in clean sheet loss to West Ham while sitting second from the top of the Premier League standings. ---- Subscribe to ESPN UK: http://bit.ly/1oGUzVA Follow ESPN UK across multiple platforms: https://en-gb.facebook.com/ESPNUK https://twitter.com/ESPNUK https://www.espn.co.uk/