COLLIERVILLE, Tenn. — Lisa Marie (Burkett) Higgins, chief technology officer for Collierville Schools, recently earned the Certified Education Technology Leader (CETL) designation from the Consortium for School Networking by passing a rigorous certification exam. Higgins, a Pqua High School graduate, has served as the district chief technology officer since 2018 and brings over 20 years of education and technology experience to the position.