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Do you really think I don't know that? What I'm saying is that the fact that there is some Alabama running back in the conversation every single year and yet none of them actually do anything tells you that it's not the back that's the good player. I think if you put McCaffrey behind that line his stats look absurd. If you want to give the Alabama OL collectively a Voldemort, fine, but Henry doesn't deserve it. At least Fournette looked like a monster, Henry doesn't, from what I've seen.
I wanted to come up with some kind DYAR-like stat, but the best I could do is adjusting the schedule for the opponent. So I took the opponents year-long rushing stats, factored out the ones against the team in question, and took the difference of what was achieved in the game against said opponent and their year-long stats, then added that to the player in question's total production in the game, which I then summed and divided by their total carries. I learned a few things.
First, Alabama's running game is impressive, Henry has 6.8 adjusted YPC, McCaffrey only has 5.8.
Second, McCaffrey was not the player early in the year. His worst game? You might think it was WSU, or maybe Northwestern, but it was actually winless UCF! Relative to their performance for the year he averaged 1.1 AYPC. That's pretty atrocious. If you drop the first two games he goes up to 6.3 AYPC, or half the difference between him and Henry. Yeah, I know Henry would improve too if you dropped his worst games, but I was curious about this because I know it takes a game or two to get things figured out for some teams. In fact, Henry's first game is by far his most statistically impressive, and if you assume that Wisconsin hadn't figured itself out defensively yet and drop that game, Henry's AYPC goes to 6.4, meaning that the first couple games are the entirety of the difference between the two players.
Third, neither team's second-best runner gets many carries. Sanders has 48, Drake has 68, and I don't think either of those numbers are big enough to do the same exercise for them and get meaningful results, though I did it anyway and Sanders is at 7.4 and Drake is at 5.8. But like I said, I don't think either of those numbers are big enough to be meaningful, both had multiple games where they didn't touch the ball at all.
I'd still like to have some version of DYAR, or better yet line-adjusted yards (even yards after contact would nice and I don't know of anywhere that does it for college), but looking at this has softened me a bit on Henry being a Voldemort contender. I still think that if you factor in everything else McCaffrey does he should be in front of Henry (Henry has 0.9 receptions/game for 8.8 y/game, as opposed to 3.1 for 37.8 for McCaffrey, plus the kickoffs), but I get Henry being in the conversation.