Team needs

Buffalo Bills: They haven’t had an elite tackle since trading Jason Peters to the Philadelphia Eagles in 2009. The hole on quarterback Ryan Fitzpatrick’s blind side is now even more glaring after Demetress Bell’s free agent defection to the Eagles this month.

Minnesota Vikings: Charlie Johnson appeared overmatched on the left side in 2011 and is better suited inside at guard. Barring a trade down, it seems a good bet they’ll take Matt Kalil to protect last year’s first-rounder, frequently injured quarterback Christian Ponder.

Arizona Cardinals: Levi Brown was re-signed after getting cut in March but might not be the answer on the blind side. The team allowed 54 sacks in 2011 and needs to give quarterback Kevin Kolb more time to determine if he’s a permanent solution under center.

Detroit Lions: After two injury-marred seasons, quarterback Matthew Stafford took a star turn in 2011. But how much longer can the team safeguard him with aging Jeff Backus and adequate Gosder Cherilus, who has a year left on his deal? Given the wealth of pass rushers in the NFC North, it’s time to reload soon.

Baltimore Ravens: They got by with Bryant Mckinnie in 2011, but the aging veteran — he’ll be 33 this season — will be a free agent in 2013, and his pass blocking has been in decline for a while. Despite his famous story, Michael Oher appears better suited to the right side than the blind side.