Jets head coach Aaron Glenn knows that his position is tenuous. As the 2026 season begins with training camps opening this week, the average tenure of an NFL head coach is 3.2 years. The Jets brought in respected veterans in safety Minkah Fitzpatrick, nose tackle David Onyemata, and linebacker Demario Davis. But perhaps the most significant addition is 35-year-old quarterback Geno Smith, who began his career with the Jets as a second-round pick (No. Now in his 14th season, Smith started a combined 29 games for the Jets in 2013 and 2014, but injuries and immaturity derailed him.