Regardless of what you think of Dareus's maturity level, McD and Beane really did throw away a ton of talent, witness how well a lot of the players they dumped have played for other teams. Now they have to fill a dozen holes on this squad. Maybe they can do it, but the proof will be in their performance. There is an arrogance in them that, if they succeed, will be justified as self-confidence, but if they fail, will be revealed as hubris.
The jury is out yet.