I think I just answered my own question in the time it took to start writing this. But there may be differing viewpoints I could consider. I have a large back yard, enclosed, but not all that secure. I built a run when I first got the chickens, but now everybody ranges freely. I lock up each of several coops every night and open them every morning. Due to the Chicken Math Syndrome, I keep adding coops of various types. I have more room in the yard, but will have to expand the run itself to enclose the new ones I add. The chickens do not stay in the back yard, but range freely over a full acre, which is fenced. In considering pulling up posts to expand the run perimeter, I started wondering why I even have fencing around a "run," any more. It would make chores much easier if I didn't have that run fencing ..... And placement of my Chicken Coop Compound Facilities. There would be fewer places for chased chickens to be cornered (by a rooster or two, for example) if that run fence wasn't there. What do y'all think? My flock ranges without supervision, by the way.