After the war Loeffler began coaching pro teams in the Basketball Association of America. First the St. Louis Bombers (1946–48), then the Providence Steamrollers (1948–49). In 1949 he returned to the college ranks when he became head coach at La Salle. With players like future Hall of FameerTom Gola, Loeffler's La Salle teams went on to dominate college basketball over half a decade in the early 1950s. In six seasons at La Salle, Loeffler led the Explorers to a post-season appearance in every single season. Under Loeffler, La Salle made four trips to the NIT (before it was considered "second-rate") and two visits to the NCAA Tournament. In 1955 Loeffler moved on to become the head coach at Texas A&M College, a post he held until 1957.
National champion Postseason invitational champion Conference regular season champion Conference regular season and conference tournament champion Division regular season champion Division regular season and conference tournament champion Conference tournament champion