You nailed it. No identity on Defense. Floyd has no defined role. Ideally he's be a 3 technique player similar to what KW was (even now, he's even asked to do different things). I think Alan Williams is in way over his head, and is not using any of our defensive players to their strenghts. New coaching, new scheme will give Floyd a chance to properly develop and become a good player.
Floyd is a mixed bag, no doubt about it. But then, he is too young to be a leader, and our defense doesn't HAVE one right now, nor an identity. I expect our defense will be much better next year, as long as we make the necessary coaching changes.
They gotta get another year at least. Need new coaches, but you can't get rid of 3 first round draft picks form the year prior, especially when they all have potential and were highly regarded as good players in the draft. They haven't shown any reason to think they can't develop into star players.
But that's the question, isn't it? WILL the Vikings bring in a new attitude, or give these guys another year? Who knows.