This is the one thing that is certain about any 2012 NFL Mock Draft—because it's certain in any scenario you might run of the 2012 NFL Draft: Some player is going to fall nearly out of the Top 20 after being mocked in the Top 10 all year, and there's going to be no easily discernible reason for it. Last year it was Prince Amukamara, who ended up at No. 19; in our mock draft it's none other than Fletcher Cox, who visits the Tennessee Titans with good fortune at No. 20 overall.
The Titans, I think, have no reason to object: Cox is the best DT prospect in football, and he's gone as high as No. 6 in 2012 NFL Mock Draft gossip back when Justin Blackmon's stock was at an all-time low. He's an outstanding pass-rusher, and his speed at the combine—he ran a 4.79—surprised all the teams who were already considering him in the Top 10.
So why did he fall? Because it's the NFL Draft, and somebody has to do it. Sorry, Fletcher; you're welcome, Titans.
SB Nation St. Louis's 2012 NFL Mock Draft is moving from No. 1 to 32 right here on draft day. You can follow along at our draft storystream, or read more mock draft recaps in our mock draft analysis storystream.