Nussmeier has also previously served as quarterbacks coach for the St. Louis Rams, the Dallas Cowboys, the Ottawa Renegades and the BC Lions.

[4] Though he followed Pac-10 quarterbacks Erik Wilhelm and Jason Palumbis at Lakeridge, the left-handed Nussmeier was not recruited by the conference.

[4] He played college football at Idaho under John L. Smith, and won the 1993 Walter Payton Award, presented annually to the Division I-AA player of the year.

That year, Nussmeier threw a school-record 33 touchdown passes, leading the Vandals to an 11–3 record and the national semifinals.

Nussmeier was a reserve quarterback in the NFL for five seasons in the mid-1990s, spending four years with the New Orleans Saints (1994–97)[7][8] and one with the Indianapolis Colts (1998).

[9] In 1998, Nussmeier spent part of training camp with the Denver Broncos, but was released prior to the regular season and picked up by the Colts.

Nussmeier finished his playing career with the BC Lions of the CFL in 2000, and stayed with the organization as the quarterbacks coach for 2001.

Nussmeier was hired in the same capacity at Washington in Seattle in early 2009 under new head coach Steve Sarkisian.

[17] In 2014, Nussmeier was hired at Michigan in Ann Arbor on January 9, following the firing of offensive coordinator Al Borges.

In 2023, Nussmeier served as the quarterbacks coach for the Los Angeles Chargers, joining his Dallas Cowboys offensive coordinator Kellen Moore.