Gibron stayed in Chicago in 1975, replacing Babe Parilli as head coach of the World Football League's Chicago Winds. The Winds got out to a 1–4 record before they were expelled from the league in September for falling below league financial requirements, a month before the entire league folded. Gibron was hired in 1976 as a defensive line coach with the expansion Tampa Bay Buccaneers, but was switched to defensive coordinator that March before returning to serve as line coach in later years. He had been a college teammate of Bucs head coach John McKay at Purdue. Gibron stayed in Tampa for seven seasons until McKay retired in early 1985 and was replaced by Leeman Bennett. He then served as a scout for the Seattle Seahawks by head coach Chuck Knox, and was accused later in the year of spying on the Cincinnati Bengals and attempting to steal their signals. Knox responded by saying Gibron's presence at a preseason game in Cincinnati could not have been a secret, given his large size. He stayed on as a scout until 1989, and later worked as an advisor to Bucs coach Sam Wyche.