He also served briefly as head men's basketball coach at Hofstra University.

[1] Born in Massena, New York, Welsh is a 1984 graduate of SUNY Potsdam, where he played basketball for his father, Jerry.

During the 1994–95 season, Jerry Welsh became ill and Tim served as the interim coach during his absence, guiding the Gaels to a 5–5 record in ten games.

[citation needed] Following the season, Jerry was forced to retire and Tim was named the head coach on a permanent basis.

On November 16, 2008, Welsh made his debut on ESPNU serving as the color analyst for the Le Moyne vs Syracuse basketball game.

Under Welsh, Providence has made five postseason appearances, reaching the NCAA Tournament in 2001 and 2004 and the NIT in 1999, 2003, and 2007.