Jenny Berg Jenny Berg coached for the Lightning in the Ponytail Division of the 2005 Volleyball Season (8/29/2005 - 12/16/2005) for girls aged 8 - 10 on 9/1/2005 (born 9/2/1994 - 9/1/1997). Jenny Berg has also coached for: Lightning, Ponytail Division Volleyball, 2004 Season. Jenny's Lightning Page