SunnyD
Belgian Waffler
maybe I'm wrong and the stats don't show it, or at least not obviously, in part because all statistics will look "random." But I think defensive stats are inherently more random. At this point we can expect Tom Brady to throw a ton of passes to wes welker and gronkowski. We can expect TDs somewhat often, even though they(as well as total catches and yardage) will vary. But sacks, interceptions, and again, Touchdowns, occur less often, so it's luck of the draw when you are facing a defense. Opponent probably factors in more heavily too.
Kickers, for example, don't vary too heavily from 1st ranked to x ranked. I would imagine Defenses vary more than position players. So an average defensive performance is more uniform. In my league, I'd say it's about 10 points. 15 would be a good outcome. Over 20, and it's rare, and makes a big difference. But those 20 pointers come from random teams at random times. Wes Welker might average 15 points a game, with a high standard deviation, but that 15 is a lot more valuable than the average defensive score. Idk, I feel like I'm starting to ramble It's only shitty useless defenses anyway
Right, but your spreadsheet sample is comparing apples to apples too (the "high end" DST's versus the "high end" skill players). If you end up looking at the oranges to oranges as well (the low end of both), you're going to find inherently more randomness on both sides of the fence. Thing is you're going to have to compare either the WHOLE sample set, or each set individually. Once you do that, you're going to see pretty much a mirror of what your limited sample is - DST's will mirror the average deviation that the skill positions have.
If you will, good solid DST's are going to have more sacks and ints (and pick-6's) just as good WRs, TEs, QBs and RBs will. Bad ones will have less, and inconsistent (ie: matchup based teams) will be more random just like their skill position counterparts.
You are correct when you say DST will be a more uniform average versus an individual player simply by virtue of comparing about 20 players per DST to one skill position player. But the inherent randomness you suggest regarding DSTs is, as you've proven, equally existent in the skill position side.