O'Brien promoted to offensive coordinator

The Patriots on Friday announced some changes to their coaching staff, most significantly promoting Bill O'Brien to offensive coordinator/quarterbacks coach.

O'Brien, who played college football at Brown and coached 14 seasons at the collegiate level, enters his fifth season with the Patriots. He served as quarterbacks coach for the past two seasons.

The other moves involved defensive coaches, including linebackers coach Matt Patricia, who will now coach the Patriots’ safeties. In addition, defensive assistant coach Patrick Graham will serve as linebackers coach, while assistant coach on offense/special teams Brian Flores will become a defensive assistant on head coach Bill Belichick’s staff.

As previously reported, Corwin Brown, who served as a defensive backs coach last season with Josh Boyer, will not return.