Stephan Lichtsteiner can bring a sense of leadership to the squad as the players will have someone to look up to. Someone who has been involved in big matches on the biggest stages in the game.
With Arsenal captain out with an Achilles injury, which sidelined him form the World Cup and the start of the campaign next season, Stephan Lichsteiner can be the calm and composed head in the relatively inexperienced Arsenal back-line with the likes of Rob Holding, Callum Chambers, and Hector Bellerin in their ranks.
Arsenal seemed completely inept when called upon to defend in the recently concluded season in which they ended up conceding over 60 goals; more than in any of the previous 5 years. Hopefully, the presence of a seasoned leader in the side will help the youngsters learn the basics of defending their lines, something they seem completely averse to at the moment.