There are holes all over the place for the Raiders will need to fill this offseason. Help is needed on every level of the defense and Derek Carr needs major upgrades to his skill position players.
Focusing on the offense, with the exception of the line and quarterback (some will argue that) the Raiders need to address running back, wide receiver, and, if Jared Cook leaves in free agency, tight end as well.
With the running back position there are several directions they could go. Where Jon Gruden and Mike Mayock decide to go is for us for speculation.