We're Black and Blue All Over:

Minnesota Vikings general manager Rick Spielman kicked off the draft-day trade speculation season by hopping on the NFL Network during Senior Bowl practices and declaring: "It will be, I think, very busy on draft day. We're the third overall pick, so we'll be looking at all the options. If someone wants to come up and get our pick, we’re going to be more than willing to listen."

As we've discussed before, the presence of Baylor quarterback Robert Griffin III would make the Vikings an obvious trading partner for a quarterback-needy team at No. 3. In the past, Spielman has said there are a few players in each draft that he would never pass up an opportunity to select, regardless of the trade offer.

You wonder if USC offensive lineman Matt Kalil will be one of those players. The Vikings are in need of a left tackle and usually teams need to devote a high draft pick to get one. Three more months to go.

Continuing around the NFC North:

• The Vikings are preaching steady improvement but not a revival in 2012, according to Tom Pelissero of 1500ESPN.com.
• Dan Wiederer of the Star Tribune checks in with new Vikings defensive coordinator Alan Williams.
• The NFL doesn't consider Los Angeles a viable option for relocation in 2012, writes Brian Murphy of the St. Paul Pioneer Press.
• Green Bay Packers quarterback Aaron Rodgers endorsed quarterbacks coach Tom Clements to replace Joe Philbin as the team's offensive coordinator, writes Jason Wilde of ESPNMilwaukee.com.
• Rodgers thinks there is a "strong possibility" that Philbin will bring Packers backup quarterback Matt Flynn to the Miami Dolphins, notes Wilde.
• David Haugh of the Chicago Tribune suggests that Phil Emery is likely the Bears' new general manager: "But given the stability Emery offers and the job requirements as [team president Ted] Phillips defines them, I will be surprised if the Bears hire anybody else."
• Bears offensive coordinator Mike Tice has been communicating daily with quarterback Jay Cutler, writes Brad Biggs of the Chicago Tribune.
• Former Bears offensive lineman Kevin Shaffer is working with draft prospects at the Senior Bowl, writes Michael C. Wright of ESPNChicago.com.
• Vaughn McClure of the Chicago Tribune wonders if Alex Van Pelt will be the Bears' new quarterbacks coach/passing coordinator.
• Detroit Lions offensive lineman Johnny Culbreath paid a $412 fine after being charged Monday with possession of marijuana. Dave Birkett of the Detroit Free Press has more.
• Lions defensive coordinator Gunther Cunningham is happy that defensive backs coach Tim Walton will remain with the team, according to Anwar S. Richardson of Mlive.com.