We are being told by various personalities that Obama's problem is that he isn't showing enough emotion. The logic seems to be that the presidency is divinity in man, and invested with such power that through sheer wrath, it's wielder can literally heal the world. Perhaps, more fairly, the logic is that the American people want their president to reflect their own sense of outrage and anger, results be damned.
It's also possible that if Obama yelled at his press conferences, kicked over the lectern and generally unfurled the Bruce Banner, the various news personalities would have more to talk about besides the fact that he refuses to do exactly that. It's not clear that such a display would, over the long term, move Obama's poll numbers a whit. I suspect the assembled personalities are concerned with numbers of their own. This is their right. It's also our right to wonder who this proposed tantrum would actually benefit.