You make it seem like Sashi Brown is all of a sudden going to coach and pick players by himself. I am telling you, the organizational layout that Haslam proposed is entirely different than what you just suggested.
Do not think of Brown as the guy picking players. He is not making scouting reports or executing trades in a locked office. From what Haslam described, Brown is going to be a cop to ensure the GM and Coach play nice together, so we do not have another Pet vs Farmer fight. If they have an argument, perhaps he breaks the gridlock, but to assume that will automatically lead to failure is foolhardy and reactionary.