FOXBORO — Patriots coach Bill Belichick will take a larger role in overseeing the defense and not hire a coordinator to replace Dean Pees.

“Titles are fine, nothing wrong with them,” Belichick said in a statement on the team Web site Friday, “but the most important thing is each person’s role, that we do everything we can to help the players succeed, everyone collectively getting the job done.”

Pees announced he would not seek a new contract as defensive coordinator four days after the Patriots lost, 33-14, to the Baltimore Ravens in the first round of the playoffs last month. His four-year deal expired at the end of January.

The Patriots hired Corwin Brown as a defensive coach on Jan. 29. He spent the past three seasons as defensive coordinator at Notre Dame.

“Corwin Brown is one of the high-class people in football,” Belichick said. “He was a tough, smart leader who was great to coach and those are the traits he brings to our staff.”

Belichick was defensive coordinator for the New York Giants from 1985-90 and for New England in 1996. He called defensive signals for the New York Jets from 1997-99 before becoming coach of the Patriots in 2000.

After Pees’ departure at the end of the season, it was speculated that linebackers coach Matt Patricia would take over the defense. Others mentioned as possible candidates were Pepper Johnson, the defensive line coach, Al Groh, who was on Belichick’s staff in Cleveland, and former Patriots defensive coordinator Romeo Crennel, before Crennel signed on with Kansas City.

The Patriots ranked 11th in the NFL in total defense for the 2009-’10 season.