Posted by ESPN.com's Kevin Seifert

The Senior Bowl festivities are underway and 30 of the NFL's 32 teams are in offseason mode. That can only mean one thing: It's mock draft time.

ESPN's own Mel Kiper issued his first mock draft of the year Wednesday night, and Mel has Detroit taking Georgia quarterback Matt Stafford with the No. 1 overall pick. At No. 9, Kiper's got Green Bay selecting Ohio State cornerback Malcolm Jenkins. (All picks below No. 16 require an ESPN.com Insider subscription.)

But I think it's also interesting to look at Kiper's "Big Board," a fluid ranking of draft-eligible prospects. As of Wednesday, Kiper's top player was Texas Tech wide receiver Michael Crabtree. Kiper has Stafford ranked as the fourth-best player — one spot above USC quarterback Mark Sanchez.

Just a little something to whet your appetite with a month to go before the annual scouting combine and three months away from the 2009 NFL draft.