He was the offensive line coach and run-game coordinator for the Arizona Hotshots of the Alliance of American Football, having previously served in a similar position with the Houston Cougars and Charlotte 49ers.
He previously served as the tight ends coach for the Atlanta Falcons of the National Football League (NFL).
Tulane University in New Orleans hired Scelfo to replace Tommy Bowden as its 36th coach mid-season on December 7, 1998.
After Hurricane Katrina devastated New Orleans in August 2005, the Tulane football team was forced to play all 11 of its games on the road, each in a different city, which may have contributed to the Green Wave's 2–9 record.
[5] Ole Miss head coach Ed Orgeron contacted a Tulane assistant about players transferring in the wake of the hurricane.
[6][7] Scelfo accused Ole Miss of tampering and said:"In the worst natural disaster in the history of the United States, you've got to stoop pretty low to do that.
[12][13] In 2019, he returned to the professional level as the offensive line coach and run-game coordinator for the Arizona Hotshots of the Alliance of American Football,[14] followed by the DC Defenders of the XFL in 2020.