My concern would this this - in ANY business, and football is just that these days, if you speak against the boss in public, at the first oppurtunity, you're shown the door. Its just the way it is.
Ask Jose. As soon as he drew against Rosenborg and with their poor start to the season, he was shown the door and he'd won two league titles, an FA Cup and Two Carling Cups.
Hope I'm proved wrong for your sake but I dunno......