Complex sentence: WKU Quarterback Legend, Willie Taggart, returned to his alma mater as head football coach in 2010 after leaving his position as Stanford running backs coach, where he served under Jack Harbaugh's son Jim Harbaugh.
Split into simpler sentences: WKU Quarterback Legend, Willie Taggart, returned to his alma mater as head football coach in 2010. Taggart would be leaving his position as Stanford running backs coach, where he served under Jack Harbaugh's son Jim Harbaugh.