2004, he only played in three games because of torn ligaments in his foot and was placed on the injured reserve list on September 30. In 2005, he recovered from an appendectomy on July 27, missing only 10 days of practice and returned to start all four preseason games. The team employed two-tight end sets, which allowed him to start 12 games alongside Witten. Detroit Lions On March 14, 2006, Campbell was signed as a free agent by the Detroit Lions. Known mostly as a blocking tight end, he posted career-highs in receiving yards (308), average per reception (14.7 avg), long reception (30 yards), and touchdowns (four), the most by a Lions tight end since 2001. On September 22, 2007, he was placed on injured reserve with an elbow injury. On September 9, 2008, he was again placed on injured reserve with a hamstring injury. He was released on February 9, 2009. New Orleans Saints On February 26, 2009, Campbell signed as a free agent with the New Orleans Saints, reuniting with head coach Sean Payton, who was his offensive coordinator with the Cowboys and the Giants. On August 10, he was placed on injured reserve with an MCL injury he suffered in training camp. He spent the entire season on injured reserve and was not granted a Super Bowl ring by the team when they won Super Bowl XLIV. NFL career statistics Coaching career Miami Dolphins In 2010, Campbell began his coaching career when he was hired by the Miami Dolphins as a coaching intern. In 2011, Campbell was promoted to the tight ends coach. Following the firing of the Dolphins head coach Joe Philbin on October 5, 2015 after a 1-3 start, Campbell was named the interim head coach for the remainder of the 2015 season. Campbell led the team to five wins and seven losses. New Orleans Saints In January 2016, Campbell was hired by the New Orleans Saints as their assistant head coach and tight ends coach under head coach Sean Payton. Detroit Lions Campbell was appointed head coach of the Detroit Lions on January 20, 2021. In his introductory press conference the following day, he famously said, "This team is going to take on the identity of this city, and this city's been down and it's found a way to get up. This team's going to be built on, we're going to kick you in