I feel like there is a lot of broad-stroke painting on both sides of the argument.
Danny White is not the sole reason Tony Vitello left, and he isn’t the primary villain in this story. He's also not an innocent lamb, either. I think there is enough evidence out there to suggest that he and Vitello didn't see eye to eye on several things. That's not all on Danny, and it's not all on Tony. It's just two giant egos that both think they're right. And in the interest of fairness, Tony doesn't always color inside the lines enough for a buttoned up boss like Danny White.
The thing I take away from all of this is that Danny White didn't do well under pressure in his press conference, yesterday. The defensive posture, the admittance that he doesn't communicate directly with his coaches very often, and never with assistants. I couldn't believe some of the things I heard him say in front of a microphone. If that really is his approach to personnel, that's an issue, especially for a person who values relationships like Tony Vitello. I just heard it stated perfectly..."When Tony walks into a room, he sees people. When Danny walks into a room, he sees $$$." They just have different approaches and perhaps different goals.