Complex sentence: He was also head coach of the Montreal Alouettes of the Canadian Football League for five seasons and led the club to two consecutive Grey Cup championships and was named CFL Coach of the Year in 2009.
Split into simpler sentences: He was also head coach of the Montreal Alouettes of the Canadian Football League (CFL) for five seasons. Trestman led the Alouettes to two consecutive Grey Cup championships and was named CFL Coach of the Year in 2009.