I was just on a media conference call with the NFL Network's excellent draft expert, Mike Mayock. For you draft lovers, here are his top story lines for April 25.

1) Has the accepted formula for trading picks changed? In other words, do teams think rookie salaries are poor enough risks that the trade value of a top-10 pick will plummet?

2) With so many teams looking to trade down, who will try to get into the top 10 and why? Mayock thinks some teams will try to move up to pick USC quarterback Mark Sanchez and possibly, Kansas State passer Josh Freeman. Others might try to get ahead of Green Bay to pick Ole Miss tackle Michael Oher, because the talent at that key position drops off after Oher. Finally, if Texas Tech receiver Michael Crabtree or Wake Forest linebacker Aaron Curry begin to fall, will teams leap?

3) Will Florida multi-purpose threat Percy Harvin or Illinois defensive back Vontae Davis fall to the bottom of the first round because of character questions? Mayock said both are top-10 talents and called Harvin a potential "human highlight reel."