There is some discussion here about DVOA, DYAR etc. (@kerouac9 )
Here's some info to explain what they mean.
https://www.footballoutsiders.com/info/methods
https://www.thefalcoholic.com/2011/1/22/1949301/stat-your-face-off-dvoa-explained
https://www.thefalcoholic.com/2011/2/2/1968544/stat-your-face-off-dyar-explained
Here's some info to explain what they mean.
https://www.footballoutsiders.com/info/methods
https://www.thefalcoholic.com/2011/1/22/1949301/stat-your-face-off-dvoa-explained
https://www.thefalcoholic.com/2011/2/2/1968544/stat-your-face-off-dyar-explained