It wasn't a good thing for the Lions there was such a run on safeties in the first round of the NFL Draft on Thursday.
Deone Buccanon from Washington State and Jimmy Ward from Northern Illinois are excellent prospects, much better than they were rated by the so-called draft gurus, who projected them as first-round picks.

Keith McGill: Utah corner would fit Lions

But there is plenty of defensive talent remaining on the board. I don't believe BYU linebacker Kyle Van Noy will fall to the Lions' second-round slot. If he does, it is a no-brainer to take him. In my opinion, the best cornerback fit for the Lions remaining in this draft is Keith McGill from Utah. He is a big corner (6-3), which the Lions are lacking. He fits the prototype of taller corners the Super Bowl champion Seahawks have used.
Cornerback LeMarcus Joyner and  safety Terrence Brooks from Florida State are still on the board and would improve the Lions. Cornerback Aaron Colvin from Oklahoma is another player, who would like be able to play right away in the league. Among the linebackers, the one I find most interesting from the Lions' perspective is Trent Murphy from Stanford.
Again, I'd stay away from offensive line or interior defensive linemen for the Lions until at least the fourth round.