Though the Bears have not used any of their pre-draft visit to work out any defensive tackles, Michael C. Wright at ESPN thinks that's where they're looking:
Depth at defensive tackle took a major hit for the Chicago Bears with the departure in free agency of Amobi Okoye and the decision to release veteran Anthony Adams.
Outside of starters Henry Melton and Matt Toeaina, rising second-year man Stephen Paea is the only defensive tackle on the roster with experience, meaning this is likely a position the Bears would look to address in the NFL draft.
A number of other mock drafts have suggested the Bears will use their first round pick (19th overall) to select a defensive end. Whatever the case, bolstering their pass rush is a clear need for the 2012-2013 Bears. Strong prospects like Fletcher Cox, Dontari Poe or Michael Brockers could all add something to the Cubs defense.