I don't know if you did or not, but the ongoing narrative of Phil Spencer: AaaaAAAAaaaaa saviour of the universe and Don Mattrick: Ruiner of worlds is beyond stupid.
At the end of it, Mattrick was the boss only answering to Ballmer. The initial xbox one vision/fuck up lands on Mattrick and Ballmer. They were the leaders.
Some blame can be placed on Spencer, sure, but at the end of it, Mattrick and Ballmer called the shots.