Ideas for improving the defense

[URSS]

I am not a coach so I can't give specific things. My observation is that the defense gives up too many yards to passing and also lacks tackling fundamentals. We gave up about 350 passing to Miami. We can't get to the championship doing that in future games. Our linebackers don't get much done in pass defense or tackling near the line of scrimmage. Our line and LBs seem to give up too many yards after contact- too many arm tackles at the shoulder level without wrapping up the legs or they overrun the ball. We D line puts pressure on the QB but usually doesn't get to him. Our ends seem to get outflanked too often and don't get it turned back into LBs.