One to try, if you can, is a team, each with their own office, but also a large "war room" where folks can rotate in and out of during their projects. During "crunch mode" everyone involved is in the war room, but they still had a private office to retreat to when needed.

This was my favorite, and this company made software for government forms, each family of forms had their own schedule, so what groups were pressured changed during the year.