Everything must go in Oakland!

That appears to be the sign head coach Jon Gruden is hanging outside the Raiders' facility.

Six weeks after trading edge rusher Khalil Mack to the Bears, the Raiders are reportedly shopping two more former first round picks: wide receiver Amari Cooper and safety Karl Joseph.

Fox Sports' Jay Glazer explains what's going on:

"They already traded Khalil Mack. Very controversial. Now they are looking to shop Karl Joseph, their first round pick from two years ago. [They] called all around the league on him. And another name they are calling around on, but not as much, but still, they are shopping him, is Amari Cooper, their first round wide receiver. So, fire sale in Oakland."

After already trading Khalil Mack, @JayGlazer reports that the Raiders have been in discussions to trade former first round picks Amari Cooper and Karl Joseph. pic.twitter.com/6QrogAHNAQ — FOX Sports: NFL (@NFLonFOX) October 14, 2018

It appears no one is safe on the Raiders' roster.

Cooper, in his fourth season with the Raiders, was named to the Pro Bowl each his first two seasons. But the Alabama product struggled mightly last season and has been inconsistent so far this season. Entering Sunday's game, Cooper had caught 22 passes for 280 yards and one touchdown.

Joseph, the No. 14 overall pick in 2016, hasn't been the defensive force the Raiders had hoped he would be. In 30 games over the last two-plus seasons, Joseph has just two interceptions,one sack, one forced fumble and 138 total tackles.

If Gruden moves Cooper and Joseph, the only remaining first round picks on the roster would be cornerback Gareon Conley and offensive lineman Kolten Miller, the top picks the last two years.