The consensus among Charlton fans is that the performance at Port Vale was particularly dismal. We were unable to defend our box for the Vale goal. On the highlights you can see three defenders retreating in a line and unable to intervene. We were also unable to penetrate a well-organised but hardly stellar defence.
Louis Mendez sums up all the problems well in his takeaways from the game: https://londonnewsonline.co.uk/four-takeaways-from-charltons-1-0-defeat-at-port-vale-garners-comments-told-us-all-we-need-to-know/