What I like about organizing things that way is that each story gets nearly full reign over its own space, but all of them are hung on a single string - the loosely-reined voice mentioned above. Thus the collection jogs away from suzerainty and past federation toward, I guess, alliance. Or maybe call each story a separate house on a single street? Or it's all a line of dive bars on some wharf front? What the hell, let's call reading the collection a pub crawl, but with words.