The Oakland Raiders fell two games below .500 on Sunday, losing to the New England Patriots by 25 points. On Tuesday, the team decided it needed to make a big change.

The organization announced it has relieved defensive coordinator Ken Norton Jr. of his duties.

“After careful thought, I have made a difficult decision to part ways with Ken Norton, Jr. as defensive coordinator,” head coach Jack Del Rio said in a statement. “I have the utmost respect for Ken as a person and as a coach, but I feel that moving John Pagano into the play-calling role will best utilize his wealth of experience.”

jpalmer@sfexaminer.com