FanHouse JohnSullivan

Now that Matt Birk has chosen the Ravens, Minnesota has to move on to Plan B. But the good news is that this is a very good year to be trying to replace a center.

The Vikings had been planning for the possibility of losing Birk since before the 2008 season. They already have 2008 sixth-round pick John Sullivan as a potential replacement and theoretically guard Anthony Herrera could also slide over and play center, but if the Vikings want to bring in some competition, the 2009 draft class is one of the best classes for centers in years.

In the Sporting News Top 99 draft prospects (released today at Sporting News Today), four centers are listed among the Top 99 prospects and ESPN has three centers in the top 65 on its board. If the Vikings aren't completely comfortable with Sullivan, they could snag another center in the draft and use it to not only give Sullivan competition, but in the case of a prospect like Max Unger or Eric Wood, it could also give them some improved depth at guard, and in Unger's case, tackle as well.

By tomorrow afternoon, the Ravens will either have their replacement for Jason Brown or the Vikings will have brought back the elder statesman of their offensive line. Matt Birk says that his first jump into free agency won't take long, as he'll make a decision by Thursday on whether to sign with the Ravens or return to Minnesota.

The Ravens need Birk more than the Vikings do. Minnesota has been planning for Birk's potential loss, as they are grooming John Sullivan to replace Birk, although there is little doubt that Birk, a six-time Pro Bowler, will be a better center in 2009 than Sullivan.

Because the NFL season never ends, we present our 2009 Offseason Roadmaps for front offices to navigate through the summer.

In an NFC that is heading into the offseason without a clear favorite, the Minnesota Vikings have almost all the pieces to be the presumptive favorite. They have an outstanding defensive line, an improved secondary and the best running back in the business. They also have a very good offensive line and thanks to Bernard Berrian, the receiver corps no longer is a joke.