3-4 or 4-3 for Oakland?

The Oakland Raiders are in the midst of a rejuvenation process, GM Reggie McKenzie is navigating through a thicket of salary cap issues; as a result, certain trends have emerged on the roster with all the comings and (moreso) goings. One thing that's become evident is that the corps of LBs could be the strength of the defense, even with the removal of former No. 8 overall pick Rolando McClain from the group via trade or release. Based upon that reality, some believe the team could switch to a 3-4 alignment.