I think we all know that Allen knows what he is doing with the defense. I just don't see the scenario where the defense is the cause for any overall failure which would lead to Allen's being fired. If the offense shows any improvement early the team as a whole is going to be better and no way Allen gets fired under that scenario. If the offense comes out as bad or worse than what we've had the past two years then then Allen may not make it, but Kubiak absolutely would be gone as well because he has full say on that side of the ball.

Basically, if Kubiak is successful Allen isn't going anywhere, but Kubiak may get offers to go elsewhere.