The Saskatchewan Roughriders announced Marc Mueller as the offensive coordinator on December 6, 2023.

Mueller, who was born and raised in Regina, returns to his home province with a decade of CFL coaching experience after beginning his career with the Calgary Stampeders as a defensive assistant in 2014. Over the next 10 seasons, Mueller served as the running backs coach (2015-19) and quarterbacks coach (2020-2023). He is a two-time Grey Cup Champion, winning in 2014 and 2018.  

Mueller helped coach Jake Maier to the starting position in 2022, when he completed 74.7 per cent of his passes. As the starter in 2023, Maier was the only CFL quarterback to play in all 18 regular-season games, amassing 4,244 yards passing (third in the league). He recorded five games with 300-plus passing yards, including a 450-yard, four-touchdown showing on July 23. He went on to have another four-touchdown game a month later, throwing for 387 yards against Toronto. Also in 2023, Maier led his team on a league-best three game-winning drives and set a franchise record with a completion percentage of 91.7 (22 of 24) against the Argonauts on Aug. 4. In 2021, Maier stepped in for an injured Bo Levi Mitchell and became the first player in CFL history to pass for 300 yards in each of his first three starts. As a team that season, the Stamps finished second in both passing yards and completions of at least 30 yards. 

Over five seasons as the running backs coach, Mueller worked with several formidable tailbacks, including Ka’Deem Carey, Don Jackson and Jerome Messam — the latter of whom won the league rushing title in 2016 and was 20 yards shy of repeating as the pace-setter in 2017. The Stamps finished among the top two in team rushing touchdowns three times during Mueller’s tenure as running backs coach. The blocking provided by the running backs and fullbacks helped the Stamps rank either first or second in fewest sacks allowed all five seasons. 

Prior to joining the CFL coaching ranks, Mueller spent one season as the quarterbacks coach at his alma mater with the University of Regina Rams after suiting up for six seasons (2007-12) as a U Sports player. Mueller graduated from the Rams as the owner of several school records, including career completion percentage (62.1) and single-season pass attempts (310 in 2009), completions (182 in 2010) and completion percentage (67.8 in 2012). As well, the former Sheldon-Williams Spartans standout set the Rams’ single-game record for completion percentage (78.4 in 2012 at Saskatchewan). He was invited to the 2011 CFL Combine and attended training camp with Edmonton, playing in one pre-season game — at historic Mosaic Stadium. 

Mueller is the grandson of legendary Roughriders quarterback Ron Lancaster. Mueller’s father, Larry, was the Roughriders’ Assistant General Manager from 1989 to 1991.