Complex sentence: Ferrell continued as a coach for the Senators in 1948 and 1949, returning to his original team, the Detroit Tigers, to coach from 1950 to 1954 before retiring from the field altogether.
Split into simpler sentences: Ferrell continued as a coach for the Senators in 1948 and 1949. He then joined Detroit Tigers as a coach from 1950 to 1954 before retiring from the field altogether.