Here are some quick thoughts:
1. Everyone knew (or should have known) that the Redskins offense would struggle this year. In a QB driven league, the Redskins are a big disadvantage. Add in Trent Williams hold out, and now Brandon Scherff and Chase Roullier, and the lack of offense is really not a surprise.
2. The defense was supposed to be good with studs along the DL and edge rushers. Plus all the depth at CB. The defense is clearly not living up to expectations.
3. Many times, coaches just need to change. Gruden has been here 5+ years. And for some reason, this year it all fell apart. It was not going to get any better with Gruden coaching the rest of the season. Gruden's teams were respectable on offense and very poor on defense. He never has elite talent on the team.
4. As people have noted in this thread, if the Redskins have a lucky season, they can win 10 games, never 11. If they are unlucky, I previously thought 4 wins was the floor. I think we are test the floor this season. Redskin disfunction limits the upside.
5. I remember how happy everyone was when Snyder fired Vinny Cerrato. But then he brings in Bruce Allen. If Snyder gets rid of Allen, we will probably hire another incompetent GM that will continue the disfunction. Firing Allen basically does not go up high enough. At some point, we need to realize that Snyder's personality/makeup/pettiness/meddlesomeness is incompatible with a winning football team.