They appear to have really hit on Mack though. Carr seems solid. Gabe Jackson even got some reps last year.
If they are smart this year and end up with Leonard Williams, Kevin White, or Amari Cooper, they are probably headed the right direction. I know Leonard Williams REALLY wants to be a Raider so if he falls to 4 that's almost a guaranteed draft pick. Raiders are also in a GREAT position this year to trade down. There's a ton of 3-4 prospects in this years draft class and 3 teams drafting RIGHT after them that all need 3-4 OLB/rush personnel. Raiders might be able to snag a desperate team and get an extra 2016 2nd rounder or 2015 3rd.
Raiders kept running the franchise into the ground because they kept mortgaging draft picks for players/trade ups. That's not how you build a franchise. The good teams routinely trade down and stockpile more players to develop so here's a good chance for the Raiders to start that trend. They have some young talent on that team. Mack/Moore/Williams (if they land him via draft) is something you can build around on D. Likewise, White/Cooper, Carr is something you can build around on O.
Developing players, that is where the Raiders have been lacking for at least 20 years.