3. That one Blake Bortles year
Aside from his stint in Green Bay, the most impressive thing on Hackett's resume is likely the work he did with Blake Bortles in Jacksonville. Hackett served as the Jaguars' quarterbacks coach from 2015-2016 before being promoted to offensive coordinator in 2017.
It was in 2017 that Hackett helped lead the Jaguars to the AFC Championship Game, on the brink of a Super Bowl appearance, with Blake Bortles as his quarterback.
Bortles led the Jaguars to a 10-6 record, finishing with 21 touchdowns and 13 interceptions while completing a career-best 60 percent of his passes. Of course, Jacksonville's defense did a lot of the heavy lifting during that magical run, but Bortles was legitimately playing some good football.
Hackett was also Bortles' quarterbacks coach in the two previous seasons, including in 2015 when he threw for a whopping 35 touchdowns and 4,428 yards. Bortles didn't work out in Jacksonville long-term, but he found some success working under Hackett.
That 35-touchdown season was despite Bortles being sacked more than any quarterback in football. Once the offensive line improved in 2017, Hackett's Jaguars offense finished sixth in yards per game and top-five in scoring.
Given how Hackett's tenure in Jacksonville unceremoniously ended the following year, it's easy to forget the success he found prior to his departure. The Jets certainly factored that into their decision.
Head coach Robert Saleh even spoke about how Hackett has had "great success with all the quarterbacks he’s worked with." That feels like a direct reference to Bortles.