Oakland needs to improve its talent on the defensive line. If the Raiders can add a defensive end, they could move Lamarr Houston to the inside to replace/rotate with veterans Richard Seymour and Tommy Kelly. Oakland entered the game with Atlanta with only three sacks on the season, so the team has to upgrade its pass rush.
If the Raiders has any free agency dollars, they could target a defensive end like Tampa Bay's Michael Bennett or Cincinnati's Michael Johnson. Either one would be a nice upgrade for Oakland. That would allow the team to potentially use its first-round pick on a tackle like Star Lotulelei or Johnathan Hankins.
If the Raiders have a top-10 pick, they'll have to look at a quarterback, but with a veteran like Carson Palmer, they don't have to force it. Oakland can wait a year if it isn't in love with a signal-caller. The Raiders need to upgrade their talent base across the team, so if the best player available is a cornerback, offensive lineman or defensive tackle, the team should take them. Once Oakland improves its talent base across the roster, the franchise can start addressing specific positions in the years to come.