Complex sentence: After a season in Norman, he returned to UCLA as an assistant for three seasons under Sanders, and then became the head coach at the University of Utah in Salt Lake City in January 1958, then a member of the Skyline Conference.
Split into simpler sentences: After a season in Norman, he returned to UCLA as an assistant for three seasons under Sanders. In January 1958, Nagel was named head coach at the University of Utah in Salt Lake City, then a member of the Skyline Conference.