John Fassel is in his first season with the Titans as special teams coordinator. Fassel joins the Titans with 20 seasons of prior NFL experience, including the past five years as special teams coordinator with the Dallas Cowboys.

Fassel arrived in Dallas in 2020, and from that point through the end of the 2024 campaign, the Cowboys consistently ranked among the NFL leaders in several special teams categories. They were fifth in gross punting average (48.3 yards per punt), fourth in net punting average (43.2 net yards per punt), second in kickoff return average (26.4 yards per return), first in total kick/punt return touchdowns (five), first in field goals made (168) and third in kickoff touchback percentage (74.0).

Three players coached by Fassel in Dallas earned a total of six Pro Bowl selections: punter Bryan Anger (2021 and 2023), returner KaVontae Turpin (2022 and 2024) and kicker Brandon Aubrey (2023 and 2024).

In 2024, the Cowboys set an all-time NFL record with an average of 32.1 yards per kickoff return (1,091 yards on 34 returns). Turpin averaged a league-best 33.5 yards per kickoff return and scored touchdowns on a 99-yard kickoff return and a 60-yard punt return. Aubrey ranked second in field goals made (40), including a league-high 14 field goals of 50-plus yards. Meanwhile, the team's coverage units ranked 11th in opponent kickoff return average (27.1).

Prior to his time with the Cowboys, Fassel served as the special teams coordinator for the Oakland Raiders (2009-11) and St. Louis/Los Angeles Rams (2012-19). For the final three games of 2016, he also served the Rams as interim head coach. Fassel began his NFL tenure as a special teams assistant with the Baltimore Ravens (2005-07) and then spent one season as Oakland's assistant special teams coordinator (2008) before being promoted to coordinator.

The son of late NFL coach Jim Fassel, John "Bones" Fassel played wide receiver at Weber State and was signed as an undrafted rookie wide receiver by the Indianapolis Colts. His multiple stops before coaching in the NFL included time as the head coach and assistant athletic director at New Mexico Highlands from 2003 to 2004.