It is the second career collegiate coaching stop for Callahan, who spent the previous four seasons as an assistant coach at the Division III level with his alma mater, Eastern Connecticut State, in Willimantic, Conn. Callahan also spent a short stint as interim head coach during his time with the Warriors.

As an undergratuate, Callahan was a four-year letterwinner at ECSU, and appeared in 34 games over the course of his career in the Frog City. His career was highlighted by a pair of NCAA Championship appearances following Little East Conference titles in 2012 and 2013. The Warriors played in the Little East championship game in each of his four years on the team.

Originally from Kingstown, R.I., Callahan is a graudate of Eastern Connecticut State, with a bachelor's degree in sport and leisure management. He is pursuing his master's degree at Franklin Pierce.