[2] Haig was appointed the third president of Wheeling College in 1966, succeeded the school's second head, Father William F. Troy, S.J.
[2] In his acceptance speech, Haig told the audience, "The world will be what our men and women of insight make it to be...It is a challenge to be asked to help them see all right.
While serving as a visiting fellow at Johns Hopkins University, Haig became in 1972 an astrophysics professor with the department of physics, engineering and computer science at Loyola University Maryland (also in Baltimore, Maryland),[3] where he served as chair during the 1980–1981 academic year.
[2] Haig was appointed the president of Le Moyne College in Syracuse, New York, in 1981, succeeding Father William J. O'Halloran, S.J.
He presented papers and lectures both in the United States and abroad and lived at the Manresa Hall Jesuit Community on the campus of St. Joseph's University in Philadelphia until his death.