Complex sentence: Anderson was announced as Arkansas State's 30th Head Coach on December 19,2013 becoming Arkansas State's 5th head coach in five years, replacing Bryan Harsin who had left for Boise State.
Split into simpler sentences: Anderson was announced as Arkansas State's head coach on December 19,2013. He became Arkansas State's fifth head coach in five years, replacing Bryan Harsin who had left for Boise State.