Foles has already changed the lives of every single person working for the Eagles. At this point, he doesn't owe them anything, much less being a good solider by making a trade go down smoother when it could harm the biggest pay day of his career. Foles' loyalty should start with himself and to his next team, because the Eagles have already decided they don't want him. Playing hardball through an appeal or through contract talks are the only options Foles has left if the Eagles use the tag. The team could wind up looking petty and not getting anything for it as a result, because Foles is in a better position to get what he wants.