There is a lot going on when you consider there are 90 odd players running around, each trying to get reps. Plenty of "information" that is open to speculation and interpretation.
The only thing we know for certain is that, based on what we saw last night, there are going to be a number of defensive players that aren't going to make this team who are legitimate NFL players.
At any rate the first (and last) preseason games are very hard to assess. Remember this is a team that excels at situational, week to week, game plans. These games are the opposite of that. What you want to see in these games are just assessing a player's individual techniques. The end result as a team (especially for the non-skill players) really don't matter. Are they improving their skills as individual that will eventually be plugged into that week to week game plan down the road. That is what the coaches are looking for. Along with are they aligning correctly, making the right calls, playing when tired or dinged, etc.