Early career Loeffler played
quarterback for the
Michigan Wolverines from 1993 to 1996. After suffering a shoulder injury that prematurely ended his playing career, Loeffler joined
Lloyd Carr's coaching staff at his alma mater as a
graduate assistant, and was a part of the Wolverine staff during the
1997 undefeated, national championship season.
Jim Herrmann - the team's defensive coordinator from 1997 to 2005 - would later state that Loeffler helped develop future NFL quarterbacks
Tom Brady and
Brian Griese in his early coaching tenure, particularly by focusing on throwing mechanics. In 2000, Loeffler was named
quarterbacks coach at
Central Michigan University. After coaching the
Chippewas for two years, Loeffler returned to coaching quarterbacks at Michigan for the next six years. In 2008, the
Detroit Lions of the
National Football League hired Loeffler to be a part of their offensive staff. However, after only one season out of the college ranks, Loeffler was hired by
Urban Meyer to join his staff at
Florida. Loeffler served as quarterbacks coach, where in his first season he was tasked with helping
Tim Tebow become a more polished pro-style quarterback. Tebow finished the season ranked 1st in passer efficiency.
Temple When
Steve Addazio was let go from Florida to eventually become the new head coach at
Temple University, he brought Loeffler along as the new
offensive coordinator and
quarterbacks coach. Under his leadership, the Owls offense improved to the 7th leading rushing offense in the nation (257 yards per game) and 33rd nationally in pass efficiency (142.8). The
team finished the season 9–4, ranked 2nd in the
MAC East and defeated Wyoming 37–15 in the
2011 New Mexico Bowl (the school's first bowl win since the 1979 Garden State Bowl). Sophomore quarterback Chris Coyer was named the bowl's
MVP and finished the season with a 177.4 passer rating. Following the season, Loeffler was linked to the vacant OC positions at the
University of Alabama,
Louisiana State University and the
University of Wisconsin.
Auburn On January 22, 2012, head coach
Gene Chizik hired Loeffler to serve as
offensive coordinator and
quarterbacks coach at Auburn. At the end of the 2012 season, Chizik was fired by Auburn. Former offensive coordinator
Gus Malzahn was hired as head coach on December 4, 2012. Shortly after being hired, Malzahn announced that all assistant coaches were being released, thus ending Loeffler's career at Auburn University. The offense finished the season dead last in the SEC in total yds/gm and pass yds/gm at 305 and 156.6, respectively. They also finished second to last with 18.7 pts/gm.
Virginia Tech On January 18, 2013, Virginia Tech head coach
Frank Beamer announced Loeffler's hiring as one of three new
Hokies offensive assistants, along with offensive line coach
Jeff Grimes (also formerly of Auburn) and wide receivers coach
Aaron Moorehead (formerly of
Stanford University). Loeffler was not retained following the retirement of Beamer after the
2015 season and the hiring of
Justin Fuente.
Boston College On January 12, 2016, Loeffler was hired by
Boston College as their offensive coordinator, reuniting him with Addazio.
Bowling Green On November 28, 2018, Loeffler was hired as the head coach of Bowling Green State University. Loeffler was taking over a Falcon program riddled by APR and off-field issues, as well as a team that in the last regime fell apart under Mike Jinks. Jinks took over with Bowling Green coming off of 3 straight MAC East Championships, winning the MAC twice and went just 4–8, 2–10, and 1–7 before being fired. Loeffler detailed a rebuilding plan that would take time. With just 2 scholarship quarterbacks on the roster, one a transfer and one a former walk-on, Loeffler's Falcons went 3–9 in 2019. The season was highlighted by beating BGSU's biggest rival Toledo for the first time in a decade. BG was a 30-point underdog at home. The COVID 2020 season went 0–5. The 2021 season saw an improved 4–8 record, highlighted by a massive 38-point upset at Minnesota, 14–10. The 2022 season started off tough, with an FCS loss to EKU in 7 overtimes, followed by a homecoming win over Marshall who had just beaten 8th-ranked Notre Dame the week before. The Falcons started off MAC play 1–1, suffering a blowout loss to Buffalo but then won their next 3 conference games. BGSU finished the 2022 season 6–6, and was ranked 3rd in the
MAC East with a 5–3 conference record. It received an invitation to play
New Mexico State in the
2022 Quick Lane Bowl, losing by a 24–19 score. In 2023, BGSU started out 1–3 before upsetting Georgia Tech in Atlanta, and then going 5–2 to finish the season with a 7–5 record. The Falcons lost to Minnesota, 30–24, in the
2023 Quick Lane Bowl. On October 30, 2021, Loeffler became the first head coach to be ejected for two
unsportsmanlike conduct calls.
Philadelphia Eagles On February 28, 2025, Loeffler left Bowling Green to join the
Philadelphia Eagles as their quarterbacks coach. ==Personal life==