Complex sentence: Paul returned home to Australia in 1992 and continued to coach gridiron and also worked as a part time lecturer at the Australian College of Physical Education teaching the basics of Gridiron to undergraduate physical education teachers.
Split into simpler sentences: Paul returned home to Australia in 1992 and continued to coach American Football. He also worked as a part time lecturer at the Australian College of Physical Education teaching the basics of the sport to undergraduate physical education teachers.