I would imagine similar arguments occur up and down the country every week.
For some reason it seems there is always someone at City who thinks the whole world needs to know about it.
I thought the unwritten rule in football that what happens in the dressing room, stays in the dressing room. You don't expose any cracks in public because the opponents might see them as weakness.
There are always people who think they are above all that mind you. A manager who generally takes hard line always risks that sort of thing, but it boils down to the same thing in my view: The one who makes it public is only thinking about himself and doesn't care how it affects anyone else.
He is protecting his own public image. Make the manager look like he's impossible to work with, that is then the perception for why I'm not being picked, or I'm not playing well.