New principals at two East Cobb elementary schools were appointed for the 2026-27 school year on Thursday, and the retirement of another K-5 principal at a school in East Cobb was announced.

The Cobb County School District said that Dr. Christina Moll will be the new principal at Addison Elementary School. She is currently an assistant principal at Milford Elementary School in the south Cobb area.
Addison has been led on an interim basis by Brett Ward, a former Cobb elementary school principal, following the resignation of Dr. Jill Spiva. She was arrested for driving under the influence near the Addison campus, and after refusing to take a blood test, Cobb Police got a search warrant from a judge requiring to provide blood.
Moll begins her new post at Addison on June 1.
The new principal at Kincaid Elementary School will be Lauren Rabil, an assistant principal at nearby Keheley Elementary School. Starting July 1, she will succeed Debbie Tennyson, who is retiring after 28 years with the Cobb school district.
Timber Ridge Elementary School principal Shannon McGill will be retiring, effective July 1. She has been at Timber Ridge since 2019 and has more than 30 years of experience as an educator. Her successor is to be named later.

Former Walton High School principal Dr. Catherine Mallanda also will be retiring. She has been the Cobb school district’s chief academic officer since 2022 after serving as a teacher and administrator at Walton. Mallanda also is a Walton graduate.
Another member of the district’s executive cabinet will be retiring. Dr. Sherri Hill has been the chief of staff since 2023 and has more than 30 years of experience as an educator.
The upcoming graduations in the Cobb school district will be the last for John Stafford, senior executive officer for the district’s events and venue management department.
He is a Walton graduate who has worked for the Cobb school district for 42 years and has been in his current position since 2017.
Stafford previously was an assistant principal at Harrison High School and was also the district’s spokesman in 2017-18.
Related:
- East Cobb students earn corporate National Merit Scholarships
- Cobb school district proposes FY 2027 budget nearing $1.9 billion
- 3 Wheeler Robotics teams advance to FIRST World Championships
- Walton Robotics qualifies for FIRST World Championships
- Wheeler students take part in ‘Civic Chats with the Wildcats’
- East Cobb high school students named 2026 Georgia Scholars
- Walton winter guard team wins championships to end season
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