Complex sentence: Previously, he was an assistant coach at Elon University under head coach, Ernie Nester, for the 2008-2009 season and most recently, an assistant coach under head coach, Scott Cherry, a former UNC player, for the 2009-2010 season.
Split into simpler sentences: Previously, he was an assistant coach at Elon University under head coach, Ernie Nestor, for the 2008-2009 season. After that, Miller was also an assistant coach under Scott Cherry, a former UNC player, for the 2009-2010 season.