Which is why Vaughan suggested that Cook needs some mentors helping behind the scenes.
Vaughan mentioned that he had a couple of mentors, one worked in the media, and watched from the media centre, the other was an MCC member who played local league cricket but had a wealth of tactical kniowledge, but would sit next to the England balcony and watch every session of cricket. It meant that Vaughan had feedback from the media side and also the educated fan side, and this helped him understand how and when to change the course of a game.
Mentors are all well and good, but when your out in the field trying to break a big partnership and there is an hour + to go until the next break you screwed. You have to be able to read the game and it isn't necessarily something that can be taught, after all how long has he been playing cricket and it seems like he doesn't have any ability to do it now.
There are too many backroom staff as it is, seems to me like they are constantly being spoon fed information that they should be working out for themselves. Head coach, skills coaches (batting, bowling, field/keeping), physio, masseuse, analyst, scorer. Seriously what are the rest of the backroom staff there for/doing?