The campus is very spread out, so unless we tear down all the buildings and start over, I'm not sure what can be done. I think there have been efforts to encourage this. On a campus-wide basis, there is some discussion coming out of Narayan's office of setting up a central resource where faculty could consult with others regarding issues such as computer applications and statisitical techniques. Many universities have such a consulting center, and it is a great asset. If each department had an open collaboration area that could be scheduled for research, collaboration, etc.
Many spaces have cubicles or awkward designs so that their uses are limited.
Mobile or flexible dividers, etc., promote use by people with various needs and would allow for changing needs within the departments. Providing adequate space and equipment would be the first step. When faculty are competing for scarce resources they are less likely to look to work with others.