He understands that's one area that needs to improve.
It sure would help if the Bears are going to deliver on the high expectations they're bringing into this season. With the trade for Pro Bowl receiver Brandon Marshall and the depth they added throughout the roster, they believe they're poised to contend in the NFC and make a big playoff run after being wrecked by injuries last season on the way to an 8-8 finish.
They still have some question marks, though, and their ability to get to the quarterback is a big one despite the presence of Peppers. The Bears simply failed to take advantage even though the perennial Pro Bowl defensive end was constantly double-teamed.

Source:
http://talknfl.bligoo.com/nfl-bears-looking-to-create-havoc
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