It's really not feasible. Until very recently (probably the mid-1990s), you couldn't get a four-year degree through any of the branch campuses. The branches were satellites for "lower division" classes, but all majors required you to finish your last two years in Storrs. Since then, the University created a "tri-campus" program that would allow you to finish your degree west of the river (West Hartford, Waterbury, Torrington) and a number of degrees can now be finished in Stamford and Avery Point (primarily degrees in marine science).
That the branches are primarily two-year schools is the reason why Avery Point is in the NJCAA and not Division III.
CCSU is another animal entirely. Frankly, if things didn't cost money, I'd like to see all of the CSUs consolidated in one location (probably CCSU's), build us a new on-campus stadium, and give the CSUs Rentschler Field.