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Billy Cosh Named Stony Brook University Head Football Coach

New football coach cosh 2
New football coach cosh 2
New head football coach Billy Cosh (right) with Director of Athletics Shawn Heilbron at the December 14 press conference. Photo by John Griffin.

Billy Cosh, formerly the offensive coordinator and quarterbacks coach at Western Michigan University, has been named the third head football coach for Stony Brook University in its Division I era.

Stony Brook University Director of Athletics Shawn Heilbron and President Maurie McInnis made the announcement on December 13.

“This is an incredibly exciting day for Stony Brook and the future of our football program as we welcome Billy Cosh to Long Island as our new head coach,” said Heilbron. “Billy is an innovative coach who will bring energy, intensity and a specific plan for building a championship-level program at Stony Brook. More importantly, he genuinely cares about creating a positive environment for our student-athletes, and I am so happy that he is joining our Seawolves family along with his wife Kelsey and daughter Charli.”

“We’re so thrilled to welcome Coach Cosh and his family to ours here at Stony Brook,” said McInnis. “As a former accomplished student-athlete himself, he understands the importance of being a coach, as well as a teacher and mentor for his players to excel at the highest levels of competition. During the interview process, it was evident Billy is a dynamic leader and innovative coach who cares deeply about student-athletes contributing on the field as well as in the classroom and in the Stony Brook community. Today marks the beginning of an exciting chapter in Stony Brook’s football history.”

New football coach cosh fam
New head football coach Bill Cosh with wife Kelsey and daughter Charli at LaValle Stadium. Photo by John Griffin.

“My family and I are excited for this opportunity to join the Stony Brook family and to lead this football program to new heights moving forward,” said Cosh. “I want to thank President McInnis, Director of Athletics Shawn Heilbron, and the search committee for giving me this tremendous opportunity.”

This is Cosh’s first college head football coaching job after several years in assistant coach and coordinator roles. He pointed to Stony Brook’s location, people and reputation both academically and athletically as reasons why he is excited about being the head football coach. “Being a FCS coach over the years, I have always admired Stony Brook from afar. I know we will develop these young men the right way and play a brand of football that will return us to the top in a great league in the CAA! I am ready to get to work and build the trust that is needed to have success.”

Cosh guided the Western Michigan offense to top-five ranks in the Mid-American Conference (MAC) in five different statistics — second in passing offense (211.2), third in total offense (365.0) and first downs (19.8), and fifth in scoring (23.7) and offensive efficiency (123.3). Prior to Western Michigan, Cosh spent three years as an FCS offensive coordinator, most recently with Richmond in 2022. That season, the Spiders went 9-4 and earned a trip to the second round of the FCS Playoffs, scoring 31.3 points per game, third-most in the CAA. He also coached at Virginia Military Institute and Concord University.

Cosh played five seasons of college football as a quarterback, playing at Houston (2013-14), Butler Community College (2012), James Madison (2011) and Kansas State (2010). He led Butler C.C. to the 2012 NJCCA National Championship, throwing for 2,856 yards and 25 touchdowns that season. He graduated with a degree in sociology from Houston in 2015.

A native of Gambrills, Maryland, Cosh is the son of long-time college football coach Chris Cosh, who recently served as defensive coordinator at Delaware (2017-19) and Hampton (2022), and most recently served as a senior analyst for Western Michigan in 2023.

Read more at the SBU Athletics website.

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