Certainly some rumours that what Cook says go's in the England camp. Sure the same could be said about Clarke though
It was suggested that Strauss banning KP was down to Cook laying down an ultimatum of "if he plays, i don't"
Sounds like a load of regurgitated wank.
Every impression of Cook given by Pietersen himself was that he was a lackey or company yes man.
Compton was treated poorly, but this is the supposed reason:
That he probably will not is largely due to a misunderstanding. Having taken a blow in the 2013 Headingley Test against New Zealand, Compton was sent for a scan and, while chatting to a doctor, was informed that he probably had a cracked rib. When the scans were analysed, however, he was shown to have suffered nothing more than deep bruising and it was alleged by the team management that he had shirked his fielding duties as he did not want to put himself in the firing line. Compton was offended, words were exchanged and he has never been selected since. It is two years since the selectors even spoke to him about a possible recall.
http://www.espncricinfo.com/blogs/content/story/902591.html