Draft Watch: NFC North

Each Wednesday leading up to the NFL draft (April 22-24), the ESPN.com blog network will take a division-by-division look at key aspects of the draft. Today's topic: Biggest needs revisited.

Chicago Bears

Last month: The Bears started five different safety combinations last season and have a pressing need for a ball-hawking free safety. Al Afalava could fit as a strong safety, but the Bears don't seem to trust any of their incumbent safeties in deep coverage. The Tampa 2 scheme doesn't always put safeties in position to make big plays, but the Bears' free safety has too often been a liability. Chicago could also use depth at defensive end after the death of Gaines Adams and the expected departure of Adewale Ogunleye.

Now: The Bears have addressed some of the needs we first identified last month via the free-agent market, signing defensive end Julius Peppers to replace Ogunleye and Chester Taylor to provide premium depth in the backfield. But both safety positions remain noticeably untouched. There have been some suggestions that the Bears pursue St. Louis safety O.J. Atogwe, a restricted free agent who would require no compensation to pry from the Rams. Barring a run at him, safety ranks with offensive line as the Bears' top needs with the draft looming in five weeks.

Detroit Lions

Last month: Depth is an issue at most positions, but none moreso than in the Lions' interior offensive and defensive lines. They are in position to draft an elite defensive tackle with their No. 2 overall pick, be it Oklahoma's Gerald McCoy or Nebraska's Ndamukong Suh. They also will be scouring the nation for candidates to play both guard positions alongside center Dominic Raiola. A receiver to steal some coverage from Calvin Johnson should be a priority after the middling performance of free-agent acquisition Bryant Johnson last season. There could also be a need at tight end, where starter Brandon Pettigrew is recovering from a torn anterior cruciate ligament and his two backups -- Casey Fitzsimmons and Will Heller -- are eligible for unrestricted free agency.

Now: The Lions have addressed the interior of their defensive line, acquiring defensive tackle Corey Williams from Cleveland and hosting defensive tackle/end Anthony Hargrove, a restricted free agent, on a visit. Veteran guard Chester Pitts is scheduled for a visit, but the left guard position might ultimately be filled through the draft. It's also not out of the question that the Lions target Oklahoma State left tackle Russell Okung with the No. 2 overall pick. The Lions have addressed their No. 2 receiver position with free agent Nate Burleson and re-signed Heller, two other areas of need we discussed.

Green Bay Packers

Last month: Both of the Packers' starting offensive tackles, Chad Clifton and Mark Tauscher, are pending unrestricted free agents. At 34 and 33, respectively, neither player has a long career ahead of him. The Packers might have addressed one of the positions by drafting T.J. Lang last year, but they could use additional depth and options considering both positions must soon be turned over. Injuries last season revealed a need for depth in the defensive backfield, especially at cornerback, and the Packers also need to determine whether they will replace outside linebacker Aaron Kampman.

Now: Clifton and Tauscher have both re-signed, but finding a left tackle of the future remains one of the Packers' top priorities as the draft approaches. Clifton signed a three-year deal, but it's not clear how long he will play. As per their philosophy, the Packers haven't addressed any needs by signing free agents from other teams. They'll target their remaining need positions in the draft. In addition to left tackle, that positional list should also include outside linebacker and cornerback.

Minnesota Vikings

Last month: Whether or not quarterback Brett Favre returns in 2010, the Vikings must establish a succession plan at the position. They've drafted three quarterbacks in the past four years, but among that list -- Tarvaris Jackson, Tyler Thigpen and John David Booty -- none are signed for 2010. There's no reason to believe the Vikings consider Sage Rosenfels a long-term solution, so drafting a quarterback would seem to be among their highest priorities. Another area of need is at cornerback, where starter Cedric Griffin is recovering from a torn anterior cruciate ligament and nickelback Benny Sapp is a pending unrestricted free agent.

Now: The Vikings re-signed Sapp to give them an alternative if Griffin isn't ready to start the season, but cornerback could still be a high priority in the draft. The loss of Taylor makes depth at running back an issue, but that is one position where it makes sense to go young. As draft boards begin to shape up, it will be interesting to see if the Vikings get an opportunity to fill their need for a long-term quarterback answer. Will there be anyone of that description available with the No. 30 overall pick? That debate remains unsettled.