Jolene Byrne was elected president of the Savannah-Chatham Public school board by receiving 73% of the unofficial returns in the runoff Tuesday night. “This is what we hoped for,” Byrne said. Her term will begin in January 2015. She will replace Joe Buck, who has reached his term limit after eight years in office. Buck, who was highly regarded, could be a hard act to follow, and leading a board of eight incumbents might be even tougher.