Duliban attended Spring Woods High School, where he was a two-way player at running back and linebacker.
As a sophomore, he led the team in special teams tackles, including 2 blocked kicks and one punt return for 19 yards, helping them to win the Southwest Conference Championship, reach #2 in the rankings and play in the 1984 Cotton Bowl Classic.
He crossed the picket line off the injured reserve to be a part of the Dallas replacement team that was given the mock name "Rhinestone Cowboys" by the media.
After some time in business and real estate, he became the head coach for Hyde Park Baptist High School in 1996.
In 2001, he was named the head coach of the Austin Rockers in the National Indoor Football League.
[9] In 2009, he was named the head coach for the inaugural season of the Austin Turfcats in the Southern Indoor Football League.