Complex sentence: Tuiasosopo had been a strength coach for the football team at his alma mater, the University of Washington, and later accepted a similar position with UCLA where he joined his former coach Rick Neuheisel.
Split into simpler sentences: Tuiasosopo had been a strength coach for the football team at his alma mater, the University of Washington. He accepted a similar position with UCLA where he will join his former Coach Rick Neuheisel.