CHARLOTTE, N.C. (AP) - The Carolina Panthers set out to improve their defense in the NFL draft, and general manager Marty Hurney is optimistic they've accomplished that goal.

But he acknowledged you can never be sure.

Hurney says he and coach Ron Rivera really like what happened over the course of the three-day draft but "you really don't know until two or three years down the road." He said for the most part things fell Carolina's way and they got the players they wanted in each round.

The Panthers selected linebacker Luke Kuechly from Boston College, defensive end Frank Alexander from Oklahoma, cornerback Josh Norman from Coastal Carolina and safety D.J. Campbell from Cal in hopes of shoring up a defense that ranked 28th in the league a year ago.