A new look at the jobs of the NFL’s newest coaches is set to begin this week.
The league announced Tuesday it will add six new offensive and defensive coaches to its staff, as well as a third assistant head coach for its secondary.
New England Patriots coach Bill Belichick, former San Francisco 49ers offensive coordinator Greg Roman and Kansas City Chiefs offensive coordinator Adam Gase are all expected to be on the sidelines at some point this season.
New York Jets coach Todd Bowles is set for his third season as the Jets’ head coach.
New York’s offensive line coach, Joe DeCamillis, will also remain with the Jets.
The 49ers hired Jim Harbaugh from the Michigan Wolverines in December to replace Bill Belichick as head coach of the Niners.
Harbaugh spent last season at Stanford, where he helped the Cardinal earn a Pac-12 title.
The Bills hired Doug Marrone as head of football operations in a new hire that will help build a younger roster, with Bills running back LeSean McCoy returning to Buffalo.
The Raiders are hiring former Minnesota Vikings defensive coordinator Todd Downing to replace Bob Sutton, who was fired on Sunday.
Nevada coach Chris Petersen, who won the Pac-10 Championship in 2012, is expected to announce his return to coaching soon.
Pittsburgh coach Mike Tomlin is set at Oklahoma State after a short tenure with the Sooners.
Tennessee has hired offensive coordinator Mike Sanford to replace Lane Kiffin, who left Tennessee after last season to join the Houston Texans.
The Dolphins hired offensive line coaches Mike Bloomgren and Matt Moore to replace Tom Coughlin and Todd Washburn.
The Giants are set to hire offensive coordinator Joe Barry, who replaced Jim Fassel last season, as they look to rebound from a 7-9 season in 2015.