Year with Browns: 1st
Year as NFL coach: 4th
- As a pass rush specialist coach with the 49ers in 2019, helped develop DE Nick Bosa, who was named the NFL Defensive Rookie of the Year after recording nine sacks. In addition, San Francisco led the league in forced fumbles and passing yards per game. The 49ers also ranked among the NFL leaders in passing first downs allowed (150, tied for first), total yards per game allowed (281.8, second), average yards per play allowed (4.66, second), red zone trips allowed (40, second), defensive touchdowns (five, tied for third), sacks (48, tied for fifth), total takeaways (27, sixth), opposing passer rating (83.0, seventh) and points per game allowed (19.4, eighth).
- The 49ers finished the 2019 regular season 13-3, marking their best regular season record since 2011 (13-3) as San Francisco earned the top seed in the NFC for the first time since 1997 and advanced to Super Bowl LIV.
- In first season with the 49ers (2018), helped DL DeForest Buckner record a career-high 12 sacks en route to first career Pro Bowl selection.