I have a background in law - was a paralegal. The one thing I learned (if I learned much at all) is that all contracts can be broken. One of my former bosses, who was a pretty good litigator, once told me that there is no contract that a good lawyer couldn't get you out of.....
True, but what it really boils down to is twelve people in a closed room....never, ever underestimate the havoc that can be brought by twelve people in a closed room....