The Oakland Raiders ended the season with the worst defense in the NFL in terms of points allowed, and near the bottom in yards allowed. Their offense wasn’t much better, finishing 28th in points and 23rd in yards. They traded away Khalil Mack, and later WR Amari Cooper. They finished the season 4-12, with two teams in their division - the Chiefs and Chargers - having finished 12-4.
The Raiders have a lot of salary cap space, and three first round draft picks- the 4th, 25th and 27th picks.