Birrell, a 25 year resident of the county, has previously served in numerous community organizations including as past chair of Keep Cobb Beautiful and the Neighborhood Safety Commission. During her first term, Birrell initiated the Keep it in Cobb Program and established the Canton Road Redevelopment Committee. She also worked with staff to amend the purchasing ordinance to include a local vendor presence clause and launch the How to do Business with Cobb seminars where business owners can learn how to become a vendor with the County and meet County representatives that make purchasing decisions.