In the Cardinals' debut season in 2017, Farrell coached them to a 10-4 record. He owns a 16-14 record in two years at North Central and a 44-34 record in five seasons as a collegiate head coach.

Farrell has been instrumental in the launch of men's lacrosse programs at three institutions, serving as an assistant coach at Adrian College (Michigan) and head coach at nearby Benedictine University before starting the program at North Central.