For the starter and backup (not third stringers as I want them to perform like scrubs) I set the throw away trait to on and Sense pressure to Paranoid.
For startting QB's only I also turned on the clutch trait (but not for guys like Cassal or Hoyer etc).
By doing that QB's now sense pressure better, throw passes away quicker, and don't just sit their like mindless specters taking sacks all day.
HUGE DIFFERENCE.
Now of course you can't edit rookies...so in future years it may rear it's ugly head....but you should be able to get at least 3-4 seasons of great play in your CFM.
I also think EA will tune the sack issue shortly. I am sure they are well aware of it.