Complex sentence: After retiring from playing rugby he became a rugby coach and later rugby administrator, becoming chairman of the Irish Rugby Union in 1995 and from 2003 until 2007 was the chairman of the International Rugby Board.
Split into simpler sentences: After retiring from playing rugby he became a rugby coach and later a rugby administrator. He became chairman of the Irish Rugby Union in 1995, and from 2003 until 2007 was the chairman of the International Rugby Board.