Prior to the Raiders week 8 game against the Steelers, the Raiders waived defensive end Brian Sanford to make room for offensive tackle Jack Cornell. Monday the team waived Cornell and Wednesday they announced they've re-signed Sanford. It's not musical chairs. There's actually a reason behind it.
The team had hoped they would get Tony Pashos back from injury last week and when that didn't happen, they had to add a backup offensive tackle, so they called up Cornell from the practice squad. That required a sacrifice on the current roster and that sacrifice was Sanford.
Now, Menelik Watson is back from injury and Cornell was waived (again) so Sanford was brought back. Likely they notified Sanford upon his release of their intentions to bring him right back. All told, he was off the team for about three days.
Sanford has played well in a reserve role for the team this season. He was brought in during training camp and played his way onto the roster. He even started against the Redskins in week four when Jason Hunter missed a game due to injury. He has totaled 7 combined tackles (4 solo) on the season.
The team also announced they have added Jack Cornell back to the practice squad. So, all is right with the world.