It's been debated for quite some time whether the best offense is a good defense and vice-versa. That old adage could be relevant to Hue Jackson as he attempts to fix the Raider offense.
When an offensive coordinator is confident in the defense's ability he can be much more confident in the game he calls. He can take chances when warranted or can be conservative with the knowledge his defense will soon get him back on the field.
There is little desperation as the coordinator is operating from a position of strength rather than a position of weakness. Thus success is more easily achieved.
One could also argue that an offense feeds off what the defense does. When Ray Lewis stuffed a ball carrier on third and short, or when Darelle Revis prevented a sure first down completion, you could see the offenses take the field with a little more swagger. It happened all year.
Improvement in the quarterback play and the offensive line will help. Receivers who catch the ball will too. It also wouldn't hurt to cut down the turnovers and penalties. These are all things which will help put points on the board.
However, that old adage may have the most to do with offensive improvement for the Raiders. If the Raider defense improves so will the offense and Hue Jackson's job will be a whole lot easier.