Total passing yards.
Jerome Bettis, Curtis Martin and Frank Gore eclipsed Jim Brown's total rushing yards. That doesn't mean crap.
The way they throw the ball in today's game it would be shameful not to have set those team records considering how low the team's records were to being with. Look at yards per attempt and especially at the difference in the number of times Mark Rypien threw the ball in 1991 to see how the records stack up. Also, his TD percentage (especially in the red zone) was not as impressive as some of the Cousins fanbois made it out to be.
I'm not saying that's the end-all stat, but there's no chance McCoy could even come close.
You don't actually know that, especially when you say he couldn't even come close. I'm not saying he could do the same but I'm having a difficult time accepting that Cousins should get the type of money he wants. I know the market demands a certain price and it basically has teams bending over for QB's and I have an issue with that. Osweiler and Smith are raping their respective teams with their contracts and those two aren't worth half of what they make (I think Cousins is worth the money those two are getting but not much more than that). A lot of people look at the stats and fantasy points Cousins has put up and see the records he has broken but fail to see that the team was inadequate in the red zone because of him. And they lost a couple of games because of how many times they had to settle for FG's in red zone possessions.