[matthewking]

The amount that your dev's will benefit from the distraction free environment depends how much they're distracted in their day to day environment, unless that's a lot then a 2x productivity increase seems unlikely, more like 1.2 - 1.3x. Stress of a tight deadline and no time to recouperate may also work against the dev's depending on how they deal with stress.

My first stance to management would have been if they want to cut the deadline, they also need to cut the features. Unless there's some kind of launch / public event this seems like a silly thing to do for the sake of 1 week!