Scarry borrowed Paul Brown's coaching techniques at Western Reserve, instituting well-organized practices there. "I had a lot of ideas about coaching before I went to work for the Browns," he said in 1947. "But the manner in which Paul organized his practice and all his duties impressed me. I try to do the same here." With no good passer or runner and a lack of depth, Western Reserve's Red Cats performed poorly in Scarry's first season, but he was praised for making the most out of a thin squad. In 1949, his second year, the Red Cats improved to a 4–5–1 (win–loss–draw) record, and Scarry was expected to stay on for a third season. The following year, however, he resigned to take an assistant coaching position at
Santa Clara University in
California under former Browns assistant
Dick Gallagher. Scarry was at Santa Clara for the
1950 and
1951 seasons, then went to
Loras College in
Dubuque, Iowa. He stayed at Loras for two years, moving to
Washington State College of the
Pacific Coast Conference in
1954. In February
1956, he was hired as a line coach by the
University of Cincinnati. During his time at Cincinnati, Scarry served as an assistant to
Otto Graham, the former Browns quarterback and teammate of Scarry's, as a coach in the
College All-Star Game, a now-defunct annual matchup between the NFL champion and a selection of the best college players from across the country. After
seven seasons at Cincinnati, Scarry got his third head coaching job, for the
Yellow Jackets at Waynesburg, his alma mater. He was also the school's athletic director. Scarry held the position for three seasons, from 1963 until 1965, and his teams had a 17–8–1 record during that span. Waynesburg won the Pennsylvania Intercollegiate Athletic Conference title in 1965, and Scarry was voted the conference's coach of the year. Scarry continued to act as the line coach under Graham for the college all-stars in the offseason during his tenure at Waynesburg. In 1964, he was inducted into football hall of fame of the
National Association of Intercollegiate Athletics, an association of smaller college sports programs. Graham became the head coach of the NFL's
Washington Redskins in
1966, and he hired Scarry that year as his defensive line coach. Scarry stayed with the Redskins through
1968, when Graham resigned after three unsuccessful seasons and was succeeded by
Vince Lombardi. Scarry then scouted briefly for the
San Francisco 49ers,
Los Angeles Rams, and
Dallas Cowboys before taking a job in
1970 as the defensive line coach for the
Miami Dolphins under
Don Shula, a former Browns player. He spent the remainder of his coaching career with the Dolphins, retiring after 15 years in 1986. Miami reached the
Super Bowl five times while Scarry was a coach there, winning consecutive championships in the
1972 and
1973 seasons. ==Later life and death==