the way arsenal plays their football they don't need classic wingers like jermaine pennant who is just going to send in the crosses one after the other.Liverpool needs very good wingers because we play cautious football and try to control the pace of the game so we don't really like to commit too many players up front,so we need the classic wingers to provide ammunition to our strikers.In contradiction arsenal thrives on the short passes, one touch football so that their central offensive midfielders can play on the wings because unlike liverpool arsenal will attack you in masses, they will commit a lot of players up front and they will often try to penetrate your penalty area with the short passes ,through ball through your central defence and overall one touch play.I've seen very few arsenal matches where you have a guy who just sticks to the wings and send in crosses.For alumnia maybe he needs more match practice and confidence than lehman who is seasoned pro.