Few NFL teams have had the kind of coaching instability seen by the Raiders over the last few decades. Jack Del Rio is poised to change that.

The Raiders and Del Rio agreed to a four-year contract extension through the 2020 season, which would be Del Rio’s sixth with the franchise. If Del Rio coaches out those four years, he’ll be the first coach to stay with the Raiders for six seasons since Tom Flores coached the team from 1979 to 1987.