In response to wozzy's comment:
The last three seasons the Patriots have ranked #1, #2 and #5 in the entire NFL for interceptions.
The past three seasons they have ranked #15, #14, #17 in the entire NFL in sacks...
In our three championship years we ranked #7, #1, #8 in the entire NFL for interceptions.
In our three championship years we ranked #13, #6, #4 in the entire NFL for sacks.
It's fairly obvious the improvement needs to happen in the front seven. You build a football team from the inside out. If you don't do your job up front then the back end suffers.
We don't sack, don't get pressure, leave opposing QB's all day to throw. We've won championships with worse defensive backfields, Troy Brown playing nickel back in the playoffs comes to mind...
The Pats are a good team. What they need is to dominate more around the line of scrimmage whether it has to do with pass rush or shut down the run or give TB time against the best in the playoffs or run successfully for critical yards in playoff games. You want to dominant on one or both sides of the line. The rest comes from that.
I would love to see us get a dominat C and/or RG. TO get a dominating DE and an meaningful upgrade at DT. Maybe we did that (DT) this off season. We will see.