What that teaches us is this, one bad signing can destroy a team season, Xhaka possesses none of the credential Arsenal
need his lack of stamina effects his ability to move up the pitch and distribute the ball and hence close the opposition down, his poor acceleration put him in
at a massive
disadvantage in taking on the one on one chase back toward his goal, his sluggish tackling causes him to get sent off and his poor positioning allow the opposition plenty of space to exploit, Xhaka overall style of play is going to cause Arsenal
huge problems for the foreseeable future.