49ers run a different type of defense this year which is why they don't allow much yards through the air. They go with alot of Dime and Nickel packages and rush only 3-4 players. That's why their sack totals are down. They only ran the base defense once during the Bills game. Fitzpatrick was so confused as was Rodgers and Stafford.
I'll say. Rodgers only completed like 70% of his passes for 300 yards and 2 TDs. Imagine if he wasn't so confused!