[5] From 2006 to 2008 Gallagher worked as associate head coach under Dan Leibovitz, helping the Hawks to their first appearance in the America East Championship game in 2008.
He then briefly worked as an assistant under Steve Donahue at Boston College,[6] a position he held for less than two weeks before being offered the head coaching job at Hartford.
The Hawks made the America East Tournament semifinals once again after defeating Boston University, before falling in double-overtime to Vermont for a place in the conference final.
On November 7, 2022, just one day before Hartford was scheduled to start the 2022–23 season (its final year as a Division I member), Gallagher resigned unexpectedly.
Conference tournament champion Gallagher graduated from Saint Joseph's University in 1999, where he played basketball under head coach Phil Martelli.