Last year, news came out that the Lions had tried to trade up to the #5 draft spot in order to take Patrick Peterson. To do so would have required them to give up most of their draft, so Mayhew relented and took Nick Fairley at #13 instead.
This year, the Lions are closer than most would have dreamed to the Super Bowl, coming fresh off of their first playoff appearance in however long. It would be easy for the brass to overreact and go all in, pinning all their hopes on one star player. I believe they're smarter than that, but is it possible we see a repeated attempt to move up?
The Lions' obvious needs are offensive line and cornerback. At #23, the likely options would be Adams, Jenkins, Glenn, and Konz, though some mocks have these guys going anywhere between #14 and the second round.
If Mayhew was willing to trade everything for Peterson last year, would he make the same move for Claiborne, who is by some accounts even better than Peterson? What about Matt Kalil, Jonathan Martin, or David DeCastro? Hopefully he wouldn't make a move for guys like Richardson or Blackmon, but in all honesty I'd be surprised if he didn't try for someone. At which positions is the talent gap enough that Mayhew might feel the need to trade up?