Is Yards Per Pass Play THE Stat?

Here are some more Week 15 numbers:

The team with the greatest average gain per offensive play went 12-4.
The team with more yards rushing went 11-4-1.
The team with more Yards Per Pass Play (including sacks) went 14-2. On this stat, the Raiders were better than the Rams, but were -5 on turnovers and lost. And the Jags were better than the Titans, but were -4 on turnovers, and allowed three returns for touchdowns.

I'm beginning to suspect that Yards Per Pass Play is THE stat, the best offensive predictor of victory. This would suggest that the most important positions on the offense are the quarterback and the two tackles, who block the pass rushers.