You dont need a 3-4 to be big bad and rough as a D. Look to Minn as a model. We need another big time DT. I like Kyle Williams as a rotation guy and Stroud is still decent but we need a young Pat Willams (like Mount Cody). Then we need a big rough run stopping MLB. Poz should be moved outside. Another starting LB should be brought in and should compete with Mitchell. If Mitchel loses out then he stays as depth. Forget releasing him we need to start adding depth to this team. The DBs are fine. I like our CBs and our S's.
On O we need a LT and better depth. IF and thats a big if Wood is healthy I move him to C and make Hangardner depth. We then have an OLine of
LT New player
LG LeVitre
C Wood
RG Incognito (or Simmons)
RT Butler
Then you keep both Lynch and Jackson, and sign or trade for a QB as a short term fix, like a COllins, Hasselback, or Buldger.
DONT EVEN THINK ABOUT THE QB POSITION UNTIL THE REST OF THE TEAM IS AT LEAST RESPECTABLE!