Assume the case of a business suit--how many acceptable permutations are there? Your question kind of illustrates my point. We could have endless arguments as to what is acceptable in a business suit. Even assuming there were a right answer, that answer would depend on where you live and what business you are in. Some suits that are perfectly acceptable in the UK are eye-popping in the states. Even in the law, the range of "acceptable" for a securities lawyer is going to be very different than the range of acceptable for an entertainment lawyer. But to try and answer your question, off the top of my head, apart from choosing a fabric, I can think of several variables: two piece v. three piece, DB v. SB, lapel style, lapel width, external pocket configuration, external pocket style, waist suppression, buttoning point, 1, 2 or 3 button, sleeve button configuration, button material, armholes, shoulder shape, lining, internal pocket configuration, jacket length, and quarters. I'm sure there are more that don't occur to me at the moment. These are just for the jacket. There are a set of choices for pants, as well, though not as many as for the jacket. If you get a vest, there are more choices to make. I don't know how many permutations that is -- and since some of the choices aren't unitary, I suppose technically there are an infinite number -- but these choices will certainly create a vast array of obviously different jackets. Well, actually, yes, I do collaborate with doctors. Depending on what you have wrong, there may be a lot of choices to make. But let's take a specific example. If you decide you want plastic surgery, do you pick a surgeon and let him give you the "house style" nose? This is not to say that you tell the surgeon how to operate but you would certainly be intimately involved in any aesthetic choices that might be going. Of course, how much you collaborate with service professionals depends on your knowledge and inclination. One would probably let the pool boy just get on with it. But suppose you had a legal problem that needed solving and hired a lawyer. Wouldn't you, as a lawyer, be more involved in making choices about how to handle the problem than a complete layman? This kind of ties in with the first question. You know an enormous amount about proper fit. You are able to have a much deeper interaction with a tailor than I. When Sator has something made, he probably has a lively discussion with the tailor about the advantages of various cutting systems. But aesthetic choices are aesthetic choices. I suppose some aesthetic choices may be functionally incompatible but not many. They may look "bad" together, but that is an entirely different issue.