Former Arsenal midfielder Emmanuel Petit has given one major reason why Mikel Arteta’s side won’t win the Premier League title this season. Arsenal failed to win the Premier League title last season as they finished in second position behind champions Manchester City. This season, the Gunners currently sit in second position behind leaders Man City after four matches. However, Petit feels Arsenal would fall short of the English top-flight title again because of their lack of squad depth amidst a new 36-team UEFA Champions League campaign. “City started poorly [last year], and they were missing…