Youth's Gunner stop you

A pundit once claimed that football teams win nothing with kids, and this certainly seems to be the case again for Arsenal as they crashed out of the Champions League by losing to Manchester United. But is this really the case? Is the Arsenal squad really too young to win? If so, when will they be old enough, and isn't it conversely the case that: if you are good enough, you are old enough? And can Arsenal be perpetually in a state of transition? Or is something much more complex happening at Arsenal? Is managing a mixture of youth and a multicultural squad simply too much for any manager to deal with? Given that Arsenal has one of the most culturally diverse squads in the Premier League, isn't this the real reason for their lack of success? After all, how can a manager reconcile such a disparate group of people to ensure they are a cohesive and unified group, with a common purpose? To this end, how could the work on cultural differences by theorists such as Hofstede have a major impact on sports teams, especially in football, and how might this affect the level of performance by these teams?